contestada

two cars traveled equal distances in different amounts of time. car A traveled the distance in 2 hours , and car B traveled the distance in 1.5 hours. car B traveled 15 mph faster than car be what is the speed of car B

Respuesta :


The answer is 90 I believe

Answer:

60 mph

Step-by-step explanation:

Let distance travelled by both the cars equal to d.

Also assume speed of Car A as x and speed of Car B as y

Then using distance formula,

d = 2x

Similarly for car B, d = 1.5 y

Also given that

speed of car B = speed of car A +15

y =x+15

Hence we have 2 x = 1.5 y  Or x =0.75 y

Substitute in y =x+15 :  y =0.75y+15

0.25y = 15

y = 15/0.25 = 60 mph

Speed of car B = 60 mph