Two cars start at the same point and travel in opposite directions. The first car travels 15 miles per hour faster than the second car. In 4 hours, the cars are 300 miles apart. Use the formula below to determine the rate of the second car. 4(r + 15) + 4r = 300 What is the rate, r, of the second car? Solve for r.

Answers

Answer 1

Answer:

The rate of the second car is 30 miles/hour

Step-by-step explanation:

The Given formula is:

4(r + 15) + 4r = 300, where r is the rate for the second car

Let us solve the equation to find r

→ Multiply 4 by (r + 15) first

∵ 4(r + 15) = 4(r) + 4(15) = 4r + 60

→ Substitute it in the equation above

∴ 4r + 60 + 4r = 300

→ Add the like terms in the left side

∵ (4r + 4r) + 60 = 300

∴ 8r + 60 = 300

→ Subtract 60 from both sides

∴ 8r + 60 - 60 = 300 - 60

∴ 8r = 240

→ Divide both sides by 8

∴ [tex]\frac{8r}{8}=\frac{240}{8}[/tex]

r = 30

The rate of the second car is 30 miles/hour


Related Questions

I really need help :( I would really appreciate it:)

Answers

Answer:

3,32,6,56

Step-by-step explanation:

Please help me!!!

Michael's parents doubled his pocket money. His sister paid $1 for ice-cream from her pocket money and he paid $3 of his poket money for an new toy. After making these payments, they have the same money left. If his sister's pocket money is $6, what was Michael's pocket money before doubling it?


1. How much money did they together have after making the payments?

2. How much money did Michael have after his pocket money was doubled. Find the value of x.

3. How much did Micheal's sister have before making the payment?

(ONLY THE ANSWER)

Answers

Answer:

x = $4

1. $10

2. $8

3. $6

Step-by-step explanation:

Let

Michael's doubled pocket money = 2x

He spends $3

Balance = 2x - 3

His sister's pocket money = $6

She spends $1

Balance = $6 - $1

= $5

2x - 3 = 5

2x = 5 + 3

2x = 8

x = 8/2

= 4

x = $4

After making the payments, they both together have $10

After Michael's pocket money was doubled, he has 2x

= 2(4)

= $8

His sister's has $6 before making the payments

i need with help again (-70)-(-7)

Answers

-70+7= -63. The answer is -63

1 pts
Question 2
Karen rented a moving truck to move all of the items in her home. The rental
company charged $42 a day plus $0.13 per mile in gas. If Karen rented the truck for 2
days and he total bill was $124.95, how many miles did she travel?
miles

Answers

Answer: 315 miles

Step-by-step explanation:

42x2=84

124.95

-84.00

_______

40.95

40.95 ➗ 0.13 = 315 miles

1. You decide to buy some new clothes. The subtotal comes to $123.79, but
you have a 15% off coupon. What is the total you will spend? *

Answers

Answer:

$105.22

Step-by-step explanation:

determine the unit rate for each ratio.
The gas station charges $180 for 3 hours of work. How much
they charge for 1 hour of work?

Answers

Answer:

$60

Step-by-step explanation:

You have to divide 180 by 3 to get the cost per hour :)

If h(x) = -4x - 10, find h(-5).
0-30
01.25
O 10
0-1

Answers

Answer:

h(-5) = 10

Step-by-step explanation:

h(x) = -4x - 10

Let x = -5

h(-5) = -4*-5 - 10

         = 20 -10

         = 10

its 10 ok that was easy sorry i need 20 characters

Which statement is true for the values of P and Q on this number line? P Q + + + + -2 -1 0 1 -6 -5 -4 لی A) ?>4 (B) PxQ< 5 CP+Q>-4 D P-Q > 0​

Answers

Answer: B

Step-by-step explanation:

When the full season tickets first went on sale,2,000 Full season tickets sold for Section N. Two weeks after the tickets first went on sale, another 1,500 full season tickets were sold for section N. How much money spent on full season tickets for section N in total? How much more money was spent when the tickets first went on sale than after the first two weeks.

Answers

Image showing the arena ticket prices is missing, so i have attached it.

Answer:

$10000 more money was spent when the tickets first went on sale than after the first 2 weeks

Step-by-step explanation:

We are told that when the full season tickets first went on sale, that 2000 full season tickets were sold for section N.

Now, from the area ticket prices table attached, we can see that full season tickets for Section N costs $20

Thus, amount of money spent when the tickets first went on sale = 2000 × 20 = $40000

We are told that 2 weeks after the tickets first went on sale, they sold 1500 tickets. Thus, amount spent after 2 weeks release = 1500 × 20 = $30000

Difference in amount spent at the beginning and after 2 weeks = $40000 - $30000 = $10000

Thus, $10000 more money was spent when the tickets first went on sale than after the first 2 weeks

What is the value of x

Answers

Answer: 2x= 40 so 2x20=40

Step-by-step explanation:every triangle has to add up to 180 digrees

65+75+40=180

Difficult one for me: Geometry!

Answers

Answer:

what is your question here??

Use the rule y = 3x + 1 to fill in the missing entries in the input-output tables.

Answers

Can you post one with a picture of the input/output tables? I don't see any.

XY−→− bisects ∠WXZ and m∠WXY=29∘. Find m∠ZXY and m∠ZXW.

Answers

Answer:

29° and 58°

Step-by-step explanation:

Since XY bisects ∠ WXZ then ∠ WXY and ∠ ZXY are congruent, thus

∠ ZXY = ∠ WXY = 29°

∠ ZXW = ∠ WXY + ∠ ZXY = 29° + 29° = 58°

An old rectangular wedding photo has a diagonal length of 13.6 inches and a height of 12 inches. Find the width of the photograph.

Answers

Answer:

just subtract i think and you will get

Step-by-step explanation:

13.6 - 12 = 1.6

The width of the photograph will be 6.4 inches.

What is a Pythagoras theorem?

The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.

The Pythagoras theorem formula is given as,

H² = P² + B²

An old rectangular wedding photo has a diagonal length of 13.6 inches and a height of 12 inches.

Then the width of the photograph is calculated as,

13.6² = 12² + w²

184.96 = 144 + w²

w² = 40.96

w = 6.4 inches

More about the Pythagoras theorem link is given below.

https://brainly.com/question/343682

#SPJ3

need help!!!!
6(x+3)=2x-64

Answers

6 + 1 8 = 2 - 6 4

Distribute.

Answer:

x= -20.5

Step-by-step explanation:

6x + 18 = 2x -64

-18 from both sides

6x = 2x - 82

-2x from both sides

4x = -82

divide by 4 on both sides

x= -20.5

HELP ASAP PLS, matching sequence to its recursive formula

Answers

A to goes to iv; B goes to ii; C goes to i; D goes to iii

It took a sports store 9 weeks to sell 90 soccer
balls. How many are sold per week?

Answers

Answer:

it would be 10 soccer balls

Step-by-step explanation:

10 every week if it was constant (because they could've sold more one week then less the next) but the genuine answer is 10 soccer balls :)

Van bought a 16-pound bag of dog food. His dog ate of the food. How many pounds of dog food did the dog eat?dogs with dog food it's a doggy ​

Answers

The dog ate 16 pounds of food

Answer:

The answer is 13 pound of dog food

Step-by-step explanation:

Here is your explanation 16 is a even  

number and you can put it in 13 because

13+ 13 =16


Misty is driving on a scenic road trip, and the graph shows the number of hours traveled compared to the number of miles of the trip
remaining. Use the graph below to the answer
450
MILES REMAINING
50
HOURS TRAVELED
Write an equation of the graph in slope-intercept form.

A) y=-100/3x+450
B) y=100/3x-450
C) y=450x+100/3

Answers

Given:

Consider the below figure attached with this question.

To find:

The equation of the graph in slope-intercept form.

Solution:

From the graph it is clear that, the line passes through (0,450) and (3,350).

So, the equation of line is

[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]

[tex]y-450=\dfrac{350-450}{3-0}(x-0)[/tex]

[tex]y-450=\dfrac{-100}{3}x[/tex]

Add 450 on both sides.

[tex]y=-\dfrac{100}{3}x+450[/tex]

Therefore, the correct option is A.

Answer:

A

Step-by-step explanation:

donno

PLEASE ANSWER FAST WILL GIVE BRAINILY
Write an equation or inequality to represent the relationship "three
times a number decreased by 12 is equal to -18". Then solve.
a. Equation :
b. Answer:

Answers

Answer:

a. 3x-12= -18 b. x=-2

Step-by-step explanation:

Please help me out with this! *It's just an extra practice assignment :)​

Answers

Answer:

t and r are parallels

t and p are perpendicular

Step-by-step explanation:

r and t have the same coordinates 4,1 but one has a negative 4 and 1

t and p have a dot on the same spot

(13/7)^2 as a simplified proper fraction or a simplified improper fraction?

Answers

Answer:

Simplified improper fraction.

Step-by-step explanation:

A simplified proper fraction would not have a numerator bigger than the denominator.

An improper fraction would have a numerator bigger than the denominator that can be simplified.

We see here that the expression isn't proper as it can be simplified further. Therefore, it is improper.

Answer: Simplified improper fraction.

Step-by-step explanation: I got this correct on a worksheet

help ASAP please will give BRAINLIEST

A car goes from 16 m/s to 2 m/s in 3.5 s. What is the car’s acceleration? SHOW WORK

Answers

Answer:

acceleration = -4m/s^2

Step-by-step explanation:

Aceleration = (Final speed - Initial speed)/time

In this case, acceletarion = (2 - 16)/3.5 = -14/3.5 = -4

acceleration = -4m/s^2

ALGEBRA 2 PLS HELP ME use square root to answer btw

Answers

Answer:

factor x+7 (so (x+7)(x+7)) and then solve like a normal equation

What is the rate of change from 2
gallons to 4 gallons? Pls I need help!!

Answers

Answer:

2 gallons

Step-by-step explanation:

Mariah took 4 quizzes in her class during the past month. Her scores were 92, 94, 100, and 83. What was her mean quiz score?

Answers

Answer:

Her mean quiz score is 92.25%.

Answer:

92.25

Step-by-step explanation:

Mean is the same as average. Add all the scores together and then decide by the number of scores.

(92+94+100+83)÷4

369÷4=92.25

A scientist needs 10 liters of a 20% acid solution for an experiment, but she has only a 5% solution and a 40% solution. To the nearest tenth of a liter, about how many liters of the 5% and the 40% solutions should she mix to get the solution she needs? Write and solve an equation to match the situation.

Answers

Answer:

5% solution needed = 5.7 liters

40% solution needed = 4.3 liters

Step-by-step explanation:

Let the amount of 5% solution is needed = x liters

And the amount of 40% solution is needed = y liters

Concentration of the final solution = 20%

5x + 40y = 20(x + y)

x + 8y = 4(x + y)

4y = 3x

x = [tex]\frac{4}{3}y[/tex] -------(1)

Total volume of the final solution needed = 10 liters

Therefore, x + y = 10 --------(2)

Now substitute the value of x from equation (1) to equation (2).

[tex]\frac{4}{3}y+y=10[/tex]

[tex]\frac{7}{3}y=10[/tex]

y = 4.3 liters

From equation (2),

x + 4.3 = 10

x = 5.7 liters


A store is having a sale on hats. The sale is buy one hat, get one 50% off. The original price of one hat is $34.98. Nate bought several hats, and the
total cost was $262.35.
How many hats did she buy

Answers

Answer:

15 hats

Step-by-step explanation:

First off, we need to divide 34.98 by 2 because it is 50 percent off.

We get 17.49 dollars.

262.35/ 17.49 because we need to find out how many hats Nate bought.

We get 15 hats

A triangle on the coordinate plane has points located at a (2,5), b (5,9), and c (8,5). What is the area of the triangle. 

Answers

Answer:

The area of the triangle is 12 unit²

Step-by-step explanation:

The vertices of the triangle are;

a(2, 5), b(5, 9), and c(8, 5)

The area of a triangle given coordinates can be given by the following determinant;

[tex]\Delta = \dfrac{1}{2}\begin{vmatrix}x_1 & y_1 & 1\\ x_2 & y_2 & 1\\ x_3 & y_3 & 1\end{vmatrix} = \dfrac{1}{2} \left | x_{1}\cdot y_{2} - x_{2}\cdot y_{1} + x_{2}\cdot y_{3} - x_{3}\cdot y_{2} + x_{3}\cdot y_{1} - x_{1}\cdot y_{3}\right |[/tex]

Therefore, we have;

[tex]\Delta = \dfrac{1}{2}\begin{vmatrix}2 & 5 & 1\\ 5 & 9 & 1\\ 8 & 5 & 1\end{vmatrix} = \dfrac{1}{2} \left | 2\times 9 - 5\times 5 + 5\times 5 - 8\times 9 + 8\times 5 - 2\times 5 \right |[/tex]

Utilizing an online determinant calculator, we have;

[tex]\dfrac{1}{2} \times \left | -12 \right |= 12[/tex]

Therefore, the area of the triangle is 12 unit².


Math
Jim baked 24 cupcakes for the upcoming bake sale. He also bought drinks.
Which sets below are factor pairs of 24?
A (3,6)
B (4.6)
C (6,8)
D (1, 24)
E (38)
Click Submit below if you want to finish the test and see the results
Save and Exit
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
26 27 28

Answers

your answer is b(4,6) explain: hajsjsjdjjshahshshsjsjsjjsjsjsjsjsjsjsjjsjsjsjs
The factor pairs are:
D (1,24)
B (4,6)
Because:
1 x 24 = 24
6 x 4 = 24
Other Questions
A bar graph is created oneA- The independent variable is a category or descriptionB- The dependent variable is a category or descriptionC- The independent variable is a number numberD- The dependent variable is a number number 4 1/82 3/4 convert the mixed numbers to improper fractions HELP NEEDED PLEASE Which of the following groups benefited most directly during the 19th century from the policies established in this passage from the Constitution of the United States? Loyalist Federalist Patriots Republicans Read the first stanza of "The Tide Rises, The Tide Falls."The tide rises, the tide falls,The twilight darkens, the curlew calls;Along the sea-sands damp and brownThe traveller hastens toward the town,And the tide rises, the tide falls.Why does the poet most likely use the words damp and brown to describe the sands?to create a subdued mood within the poemto make the poem more haunting or unsettlingto give a sense of the time of yearto evoke sadness within the reader which selection from the text is an allusion?Liam's white kitten lay curled up on the sofa like a snowball. The kittens white fur had earned her the name Frosty the Snowman, but her feisty personality suggested that perhaps "Strong" might be more appropriate. In just a few days, Frosty had pulled down the curtains in Liam's bedroom, knocked a vase off the bookself, and sent the family dog into hiding. The kitten was a mini-tornado. The white ball of fur pounced and hissed commandingly, just as a sudden storm shows it's power with thunder and lightning.OA. kitten lay curled up on the sofa like a snowballOB. the kittens white fur had earned her the name Frosty the SnowmanOC. the kitten was a mini tornadoOD. the white ball of fur pounced and hissed commandingly hi, can someone please answer this? Mcmurtry Corporation sells a product for $250 per unit. The product's current sales are 13,600 units and its break-even sales are 10,608 units. The margin of safety as a percentage of sales is closest to: Somebody help me plsss Republican President Richard Nixon resigned (quit) the presidency in 1973, the only president to ever do so. He had been responsible for illegal actions when he had people spy on the Democrats so he could win re-election in 1972. They broke into the Democrats headquarters in the Watergate hotel, and the scandal has been called Watergate ever since. Nixons vice president, Gerald Ford, became president, then he pardoned Nixon for any crimes he may have committed.The __________________________ branch is checking the ___________________________ branchs power.PLEASE HELP QUICK, I HAVE TO GET THIS TURNED IN IN 1 HOUR Janelle would like to give a party bag to every person who is coming to her party. The cost of the party bag is $7 per person. Write an inequality that describes the number of people P that she can invite if Janelle has No more than $95 dollars to spend on the party bags. Organisms that produce their own food release oxygen into the air. This oxygen is important to the environment because A. animals breathe in and use this oxygen.B. oxygen helps prevent storms that can harm the environment.C. animals use oxygen to make water.D. oxygen helps make sure the temperature stays the same. The following pension-related data pertain to Metro Recreation's noncontributory, defined benefit pension plan for 2018:Projected benefit obligation $5,800 $6,080 Accumulated benefit obligation 3,800 4,120 Plan assets (fair value) 7,080 7,525 Interest (discount) rate, 8% Expected return on plan assets, 10% Prior service costAOCI (from Dec. 31, 2017, amendment) 1,010 Net lossAOCI 728 Average remaining service life: 10 years Gain due to changes in actuarial assumptions 72 Contributions to pension fund (end of year) 510 Pension benefits paid (end of year) 465 Required: Prepare a pension spreadsheet that shows the relationships among the various pension balances, shows the changes in those balances, and computes pension expense for 2018. Calculate the heat that must be supplied toa 532 , stainless steel vessel containing 375 gof water to raise its temperature from 35 Cto the boiling point of water 100C. Cs. =0.51 J/g. degrees CAnswer in units of J. A small number of cards has been lost from a complete pack. If I deal among four people, three cards remain. If I deal among three people, two remain and if I deal among five people, two cards remain. How many cards are there? (My musical theatre asks us riddles for points, and its not for today its for Tuesday) no fake answers please easy question You are solving systems of equations by graphing and you get the following graph shown below? What is the solution to this system? How do we know what the solution of a system is when graphing?(4 sentences at least_ what type of consumer is this organisms D. The organism is not a consumer Write a letter to your cousin telling him or her about the exciting things in your region Write the equation of a line that passes through the point (3, 4) and has a slope of -1 Find the surface area of a right cone with a diameter of 6 inches and a slant height of 5 inches. ASAP!!! PlEASE !!!!!!!!!