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?

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

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

Car B traveled at 40 mph.

Hope This Helps :)

what do you need me to answer?

step-by-step explanation:

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500