Wanda started walking along a path 27 seconds before Dave. Wanda walked at a constant rate of 3 feet per second. Face walked along the same path at a constant rate of 4.5 feet per second. Graph the system of linear equations. How long after Dave starts walking will he catch up with Wanda

Answers

Answer 1

Answer:

54

Step-by-step explanation:

4.5x=3(x+27)

4.5x=3x+81

1.5x=81

x=54


Related Questions

Luis choosing one card from the deck then choosing a second card without replacing the first. Is this independent or dependent

Answers

Luis choosing one card from the deck then choosing a second card without replacing the first is a dependent event.

Step-by-step explanation:

Lets define independent and dependent events first.

Independent events:

The events are said to be independent if the probability of occurrence of one event doesn't affect the probability of second event.

Dependent events:

The events in which the probability of occurrence of one event affects the second event's probability of occurrence, are called dependent events.

Now,

When a card is drawn from a deck of cards and NOT replaced, it makes the second event's probability depend on first event as the sample space for second event changes due to the first event.

Hence,

Luis choosing one card from the deck then choosing a second card without replacing the first is a dependent event.

Keywords: Probability, dependent events

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A class of 195 students went on a field trip. They took 7 vehicles, some cars and some buses. Find the number of cars and Numbers off buses they took if each car holds 5 student’s and each bus holds 45 students.

Answers

Answer:80

Step-by-step explanation:

Answer:

Number of cars=3

Number of buses=4

Step-by-step explanation:

Let the number of cars be x, and the number of buses be y.

x+y=7 (total number of vehicles) ---①

5x+45y=195 (total number of students) ---②

*each car holds 5 students, whereas each bus holds 45, which equals to 5x and 45y

From equation ①,

x=7-y ---③

Substitute ③ into ②

5(7-y)+45y=195

35-5y+45y=195

40y=195-35

40y=160

y=4

Therefore,

x+y=7

x=7-y

x=7-4

x=3

what is 58% of 18 Show and explain your work, please!!!

Answers

Answer:

10.44

Step-by-step explanation:

okay so percentages can be converted to decimals

to do this, you can either:

move the decimal space to the left twice

or

divide the percentage (in this case 58) by 100,

regardless you will get the same answer

58.0 → 5.80 → 0.58

now that you have 58% as a decimal, all you have to do is multiply it by 18

(0.58)(18) = 10.44

therefore, 58% of 18 is 10.44

Final answer:

To calculate 58% of 18, convert the percentage to a decimal (0.58) and multiply it by 18, resulting in 10.44.

Explanation:

To find what 58% of 18 is, we use the concept that 'percent' means 'per hundred' or 'out of 100'. So essentially, we need to find 58 out of every 100 parts of 18. This calculation can be represented by the mathematical expression 0.58 x 18 (since 58% as a decimal is 0.58). The steps to solve this are:

Convert the percentage to a decimal: 58% = 0.58.Multiply the decimal by the total number: 0.58 x 18.Perform the multiplication: 0.58 x 18 = 10.44.

So, 58% of 18 is 10.44.

Carmen often orders party trays from her favorite Mexican food restaurant For company events. For a recent company party, she spent $38 on one burrito bladder and one taco platter. For a company meeting, she spent $90 on to burrito platters and one taco platter. How much does each type of platter cost?

Answers

Question:

Carmen often orders party trays from her favorite Mexican food restaurant For company events. For a recent company party, she spent $58 on one burrito platter and one taco platter. For a company meeting, she spent $90 on two burrito platters and one taco platter. How much does each type of platter cost?

Answer:

The cost of each buritto platters is $ 32 and cost of each taco platter is $ 26

Solution:

Let "a" be the cost of each burrito platters

Let "b" be the cost of each taco platters

Carmen spent $58 on one burrito bladder and one taco platter

Therefore we frame a equation as:

one burrito bladder x cost of each burrito platters + one taco platter x cost of each taco platters = 58

[tex]1 \times a + 1 \times b = 58[/tex]

a + b = 58 ---------- eqn 1

For a company meeting, she spent $90 on two burrito platters and one taco platter

two burrito platters x cost of 1 burrito platter + one taco platter x cost of 1 taco platter = 90

[tex]2 \times a + 1 \times b = 90[/tex]

2a + b = 90 ----------- eqn 2

Let us solve eqn 1 and eqn 2

Subtract eqn 1 from eqn 2

2a + b -a - b = 90 - 58

a = 32

Substitute a = 32 in eqn 1

32 + b = 58

b = 26

Hence, cost of 1 burrito = $32  and the cost of 1 taco platter = $26

Pls Help me plsssssssss

Answers

Answer:

X=89.4

Step-by-step explanation:

Rachel has $18.20 deducted from her paycheck every month for insurance. After 6.25 months, how much money
has been deducted from Rachel's checks?
O -$11.38
CO -$18.20
-$113.75
-$1,137.5

Answers

113.75 has been deducted

Answer:

The answer is C.) -113.75

Step-by-step explanation: I just did the assignment and used a calculator to find the answer.

please help i need this answer for my end of course test
a(1) = -13
a(n) = a(n - 1) + 4
Find the second term in the sequence.
Question options:

a) 9

b) -9

c) 8

d) -8

i will give you the brainliest

Answers

Option B

The second term of sequence is -9

Solution:

Given that,

[tex]a(1)= -13\\\\a(n) = a(n-1) + 4[/tex]

We have to find the second term of sequence

To find the second term of sequence, substitute n = 2 in given recursive formula

Plug in n = 2 in above equation

[tex]a(2) = a(2-1) + 4\\\\a(2) = a(1) + 4[/tex]

Substitute a(1) = -13

[tex]a(2) = -13 + 4\\\\a(2) = -9[/tex]

Thus the second term of sequence is -9

How can you use a property of operations to write a simplified equivalent expression

Answers

Answer:

Step-by-step explanation:

For example, apply the distributive property to the expression 3 (2 + ) to produce the equivalent expression 6 + 3; apply the distributive property to the expression 24 + 18 to produce the equivalent expression 6 (4 + 3); apply properties of operations to + + to produce the equivalent expression 3.

what is rational 125 in simplest form

Answers

Answer:

1/8

Step-by-step explanation:

If we divide both the top and the bottom by 5 since we know 125 is a multiple of 5, we get 25/200. Divide both by 5 again to get 5/40. Divide by 5 one more time to get 1/8, and since the numerator is 1, the fraction cannot be simplified any further. Therefore, the answer in its simplest form is 1/8.

Answer:

If we divide both the top and the bottom by 5 since we know 125 is a multiple of 5, we get 25/200. Divide both by 5 again to get 5/40. Divide by 5 one more time to get 1/8, and since the numerator is 1, the fraction cannot be simplified any further. Therefore, the answer in its simplest form is 1/8.

Step-by-step explanation:

What is the completely factored form of f(x)=x3+4x2+7x+6?

Answers

Answer:

f(x)=(x+2)(x−(−1+i2√))(x−(−1−i2√))

Sorry if its wrong!

The required completely factored form is f(x) = (x + 2)(x−(−1+i2√))(x−(−1−i2√)).

What is the Factorization?

Factorization, also known as factoring, is the breakdown of one element into a product of other objects, or factors, which when multiplied together generate the original. For example, the number 21 factors into primes as 3 × 7, and the polynomial x² − 9 factors as (x+3)(x-3).

The function is given in the question following as:

f(x) = x³ + 4x² + 7x + 6

We have to determine the completely factored form of the given function

As per the given question, we have

⇒ f(x) = x³ + 4x² + 7x + 6

Common factor as (x + 2) out in the above expression,

⇒ f(x) = (x + 2)(x² + 2x + 3)

⇒ f(x) = (x + 2)(x−(−1+i√2))(x−(−1−i√2))

Therefore, the required completely factored form is f(x) = (x + 2)(x−(−1+i2√))(x−(−1−i2√)).

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Four friends share the profit of a lawn care service equally. The friends charge $45 per lawn and spend $30 of their total
earnings on gasoline for the lawnmowers each week. Which inequality can be used to find m, the number of lawns they need
to mow next week so that each person earns at least $275?
45m-30 2275
45m-302275
45m-30 $275
45m - 30 s275

Answers

Answer:

45 m - 30   ≥  275 x (4)  is the required inequality.

Step-by-step explanation:

m: The number of lawns they need  to mow next week

The charge per mowing of lawn = $45

The total earnings spent on gasoline each week  = $30

The earning per person is AT LEAST $275.

Now,if 1 person earns at least $275

So, the total minimum earnings of 4 people  = 4 x ($275)  = $ 1100

Also, of per mow charge  = $45

So, the charge of mowing m lawns  = m x ( Per mow charge )  

= m x ( $45) = 45 m

Now, according to question:

Total Earning - Money spent on gasoline  ≥  Total Earning $1100  

or, 45 m - 30   ≥   1100

Hence, the needed inequality is  45 m - 30   ≥   1100

or, 45 m - 30   ≥  275 x (4)

Answer:

a

Step-by-step explanation:

for people who don't like reading, i gotchu <3

Which situation would be represented by the integer -8?

You earn $8
A hole 8 feet deep.
A temperature of 8°F.
An 8-yard pass.

Answers

Answer:

Step-by-step explanation:

a hole 8 ft deep.....would be -8 because it is -8 below ground level

u earn $ 8....thats +8

a temp of 8 F....thats a +8

an 8 yd pass....thats a + 8

Answer:

a hole 8 ft deep.....would be -8 because it is -8 below ground level

Peter has to use the following information to find the original number: "If you double a number and then add 36 you get 4/11 of the original number." Write and solve an equation to find the original number.

Answers

Answer:

-22

Step-by-step explanation:

2x + 36 = 4/11 x

2x - 4/11 x = - 36

18/11 x = - 36

x = ((-36) x 11) / 18 = - 22

a rectangular room is twice as long as its breadth and its peimeter is 540 m. find the number of bricks of size 20 cm ×12cm to pave the room. if the rate of cost of bricka is rs. 950 per 1000, find the cost of paving the room.​

Answers

Answer:

Step-by-step explanation:

breadth = x

length = 2x

Perimeter = 540m

2*( length + breadth ) = 540

2 *(2x + x) = 540

3x = 540/2

3x = 270

x = 270/3

x = 90 m

Breadth = 90m = 90 *100 = 9000 cm

Length = 2*90 = 180 m = 180 * 100 = 18000 cm

No.of bricks = Area of room/ area of one brick

= 9000 * 18000 / 20 * 12

= 675000 bricks

HELP HELLP HELP MEH I NEED 16 MORE CLASSES LEFT FOR SCHOOL LET IT BECOME 15 PLEASE

Answers

Answer:

2*2*9+4*12*3=36+144=180

Step-by-step explanation:

Can someone please help!!

Linda's health insurance policy has a $1,000 deductible and 20% coinsurance. Her total medical bills last year were $6,450.
The insurance company paid a total of _ for the year.

options are:
$5,450
$4,160
$4,360
$2,090

Answers

Final answer:

After deducting Linda's $1,000 deductible and 20% coinsurance from her total medical bills, the insurance company paid $4,360 for the year.

Explanation:

Linda's health insurance policy has a deductible of $1,000, meaning that amount will have to be paid out of her pocket before the insurance starts to cover. In addition, the policy has 20% coinsurance, which means Linda is responsible for 20% of the remaining healthcare costs after the deductible is met.

First, calculate the bills Linda has to pay after the deductible: $6450 - $1000 = $5450.

Next, account for the coinsurance by calculating 20% of that amount: 0.20 * $5450 = $1090.

To find out how much the insurance company paid, we subtract the amount Linda pays from her total bills. Therefore, $6450 - $1000 (deductible) - $1090 (coinsurance) = $4360. So, the insurance company paid $4360 for the year.

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What is the altitude of an equilateral triangle with a side length of 10 in.

Answers

Good morning,

Answer:

[tex]\frac{\sqrt{3} }{2} a[/tex]

Step-by-step explanation:

h = altitude

side = a

using Pythagorean theorem: in the right triangle:

h² = a² - (a/2)²

    = a² - a²/4

    = 3/4a²

    = [(√3/2)×a]²

⇒ h = (√3/2)×a.

:)

Rita correctly answered 9 out of the 10 on the test. What was the fraction of the test did rita answer incorrectly

Answers

Answer:

she got 9 out of 10 correct on the test so 90% correct, which only leave 10% left to have 100%.

so she got 10% wrong

Step-by-step explanation:

Answer:

1 out of ten or 10 percent { :

Step-by-step explanation:

The steps to solving -3x(4x+3)+5x

Answers

1. distribute the -3x across the parenthesis, so it would be -3x*4x - (changed from a + because of the negative before 3x) 3x*3. so this would give you -12x^2 - 9x + 5x.
2. combine like terms (x) to get -12x^2 - 4x. (can't combine the -12x^2 bc the x is squared)
3. optional : factor our -4x from -12x^2 and 4x to simplify further to get -4x(3x+4).

Hey there!

-3x(4x + 3) + 5x

= -3x(4x) + -3x(3) + 5x

= -3x(4x) - 3x(3) + 5x

= -3x(4x) + 3(-3x) + 5x

= -12x^2 + 3(-3x) + 5x

= -12x^2 - 9x + 5x

= -12x^2 - 4

Therefore, your answer is: -12x^2 - 4

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Five movie tickets cost 36.25 what is the cost of 8 movie tickets

Answers

Answer:

290.

Step-by-step explanation:

36.25 x 8

soo divide 5 and 36.25 it equals 7.25
now times 7.25 with 8 and it equals 58.00

Mrs. Jones is building wooden picture frames. She has 1 5/8 of wood and needs 3/4 for each frame. How many frames can she make with the exiting material? *

show ur work

Answers

Answer:

[tex]2\frac{1}{6}\ frames[/tex]

Step-by-step explanation:

we know that

To find out how many frames she can  make with the exiting material, divide 1 5/8 by 3/4

so

[tex]1\frac{5}{8}:\frac{3}{4}[/tex]

Convert mixed number to an improper fraction

[tex]1\frac{5}{8}=\frac{1*8+5}{8}=\frac{13}{8}[/tex]

substitute

[tex]\frac{13}{8}:\frac{3}{4}=\frac{52}{24}\ frames[/tex]

Simplify

[tex]\frac{13}{6}\ frames[/tex]

Convert to mixed number

[tex]\frac{13}{6}\ frames=\frac{12}{6}+\frac{1}{6}=2\frac{1}{6}\ frames[/tex]

The table shows inputs and outputs for a relation.
Identify a possible value for x that would make the relation shown in the table NOT a
function. Explain.​

Answers

Answer:

whats the answer lol

Step-by-step explanation:

Pls help, more equations. If you answer, you can do it on paper, then take a photo and post it as your answer

Answers

Answer:

all work is shown and pictured

How many does 40 go into 100

Answers

Answer:2.5 or 2 with the remainder of 20

Step-by-step explanation:

Answer:

2.5

Step-by-step explanation:

If you are asking what 100 divided by 40 is, that is the answer. (I'm not really sure how to explain it. Just type in 100 divided by 40 into your calculator)

Hope this helps!

-Coconut;)

help asap pls

Joni is solving the equation 3x-1= 6 - x using the graphing capabilities
on her calculator. Here is what the calculator screen displays
when she finds the intersection of the graphs of Y2 = 3x - 1 and Y2 = 6-X.
What is the solution to the equation? How do you know?

Answers

Answer:

x = 7/4 = 1.75

Step-by-step explanation:

Hello - so you don't seem to have shown what the calculator screen displays, however I can assume it will show a graph of the two lines, and their intersection point. The x-co-ordinate of this intersection point is the solution to the equation.

As I can't see the calculator, I will also show you how to work out the solution for x:

3x - 1 = 6 -x

4x -1 = 6

4x = 7

x   = 7/4  = 1.75

Four times a number,decreased by two is five.

Answers

Written out, that would be 4x - 2 = 5.

To solve, add 2 and then divide by 4:

4x = 7

x = 7/4

Answer:

7/4

Step-by-step explanation:

X = a number

Four times a number

4X

Four times a number,decreased by two

4X - 2

Four times a number,decreased by two is five.

4X - 2 = 5

4X = 5 + 2 = 7

X = 7/4

Which graph represents the solution to this inequality? 16x - 80x < 37 + 27

Answers

The graph that represents the solution to this inequality is x > -1.

What is inequality?

It shows a relationship between two numbers or two expressions.

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal =

Greater than and equal=

We have,

The given inequality is 16x - 80x < 37 + 27.

Simplifying the left-hand side of the inequality.

-64x < 64

Dividing both sides by -64

(remember to reverse the inequality because we're dividing by a negative number).

x > -1

Now,

This inequality represents all values of x that are greater than -1.

To represent this solution graphically, we would shade the region to the right of the vertical line x = -1, as all x values to the right of -1 satisfy the inequality.

Thus,

The graph that represents the solution to this inequality is x > -1.

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what is the sum of 43,489 + 444,398​

Answers

Answer:

487887

Step-by-step explanation:

Answer:
879187

Step by step explanation:
43489
+444398
—————
879187

Find the area of triangle ABC with vertices A(2,1), B (12,2), C (12,8). Hence, or otherwise find the perpendicular distance from B to AC.

Answers

The area of a triangle is =54 square unitsThe perpendicular distance from B to AC is = [tex]\frac{108}{\sqrt{149} } units[/tex]

Step-by-step explanation:

Given a triangle ABC with vertices A(2,1),B(12,2) and C(12,8)

[tex]x_1=2,y_1=1,x_2=12,y_2=2,x_3=12 and y_3=8[/tex]

The area of a triangle is= [tex]\frac{1}{2} [x_1(y_2-y_3) +x_2 (y_3- y_1)+x_3(y_1-y_2)][/tex]

=[tex]|\frac{1}{2} [2(2-8+12(8-1)+12(1-2)]|[/tex]

=[tex]|-54|[/tex] = 54 square units

The length of AC = [tex]\sqrt{(x_1-x_3)^{2} +(y_1-y_3)^2}[/tex]

                          = [tex]\sqrt{(2-12)^{2} +(1-8)^2}[/tex]

                         =[tex]\sqrt{149}[/tex] units

Let the perpendicular distance from B to AC be = x

According To Problem

[tex]\frac{1}{2} \times x \times \sqrt{149} = 54[/tex]

⇔[tex]x =\frac{108}{\sqrt{149} }[/tex] units

Therefore the perpendicular distance from B to AC is = [tex]\frac{108}{\sqrt{149} } units[/tex]

Identify the slope with point A at (2,6) and Point B at (4,10)

Answers

Answer:

The slope to the given points A at (2,6) and B at (4,10) is 2

Therefore slope m=2

Step-by-step explanation:

Given points are A at (2,6) and B at (4,10)

To find the slope of the given two points :

Let [tex](x_1,y_1) and (x_2,y_2)[/tex] be the given points A at (2,6) and B at (4,10) respectively

Slope m[tex]=\frac{y_2-y_1}{x_2-x_1}[/tex]

Now substitute the points in the above equation we get

m[tex]=\frac{10-6}{4-2}[/tex]

[tex]=\frac{4}{2}[/tex]

[tex]=2[/tex]

Therefore m=2

The slope to the given points A at (2,6) and B at (4,10) is 2

Therefore slope m=2

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