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I am Lyosha [343]
3 years ago
10

Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 4 h, and Car B traveled the dista

nce in 4.5 h. Car B traveled 5 mph slower than Car A.
How fast did Car B travel?
Mathematics
1 answer:
poizon [28]3 years ago
8 0
The rate of Car A is x
The rate of Car B is x - 5

They travel the same distance. So we can make an equation:

4(x) = 4.5(x-5)

Solve for x.

4(x) = 4.5(x-5)
4x = 4.5x - 22.5

Subtract 4.5x on both sides

-0.5x = -22.5

Divide by -0.5 on both sides
x = 45

But we want the speed of Car B which is x - 5

So Car B's speed is 45 - 5 = 40

Your answer is 40
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What is the inverse of the function f(x) = 2x – 10
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Answer:

y = 1/2x +5

Step-by-step explanation:

change f(x) to y

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then switch x and y

x = 2y - 10

then solve for y

add 10 to both sides and divide both sides by 2

6 0
2 years ago
Read 2 more answers
suppose 25 out of 175 people said they like to play disc golf and out 5 out of every twelve of the players have a personalized b
Serhud [2]
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Number of people who would have personalized flying disc = \frac{5}{12}*252= \frac{2*252}{12}=105 people

Then we work out the number of people who like to play disc golf:
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3 years ago
Solve the following proportion.<br> х<br> 42<br> 35<br> 10
anzhelika [568]

Answer:

12

Step-by-step explanation:

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We can simplify the right side by dividing by 7/7 to get the right side equal to 6/5. Now we can cross-multiply to get

60=5x

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6 0
2 years ago
Fill in the chart on paper than list the coefficient of x^2 term.
slamgirl [31]
I am assuming you're doing a Punnet square, so you multiply each one. So on the top left box, it is -45x^2, the top right is 9x, bottom left is 35x, and bottom right is -7. 
8 0
2 years ago
Question is in picture! <br><br> Please help!
Pachacha [2.7K]
I'm not sure on this one but try .30 and .90 but don't count on it to much
8 0
2 years ago
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