Question

PLEASE HELP! WILL GIVE BRAINLIEST!
Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 4 h, and Car B traveled the distance in 4.5 h. Car B traveled 5 mph slower than Car A.

(The formula R⋅T=D , where R is the rate of speed, T is the time, and D is the distance can be used.)

How fast did Car B travel?

Answer 1

Answer:

40 mph.

Step-by-step explanation:

Hope I helped!

x-5=speed of car B

x=speed of car A

distance=speed times time

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

4.5x-22.5=4x

Multiply both sides by 2 to get rid of the decimals. 

9x-45=8x

Subtract 8x from each side.

x-45=0 9  (A)

Add 45 to both sides.

x=45

Speed of car A=45 mph

Speed of car B=40 mph

Answer 2

Hi There!

Step-by-step explanation:

Car B Travel Distance = x

Car A Travel Distance = x + 5 (Given the fact that Car A is traveling 5mph faster than Car B)

Formula - R * T = D

Car A Distance - (4 * x) + (4 * 5) or 4(5 + x)

We know that both cars travel the same distance.

4 * (5 + x) = 4.5x = 20 + 4x

Switch: 4.5x + (-4x) = 20 (4.5x - 4x = 20)

Subtract 4 to the left side: 0.5x - 0x = 20 (0.5x = 20)

Divide: 20 / 0.5 = 40

Answer:

Car B traveled at 40 mph.

Hope This Helps :)