Question

HELP ME PLEASEE! turns out, I had another question ;-; Car A began a journey from a point at 9 am, traveling at 30 mph. At 10 am car B started traveling from the same point at 40 mph in the same direction as car A. At what time will car B pass car A?

Answer 1

@mathstudent55 @iGreen @timanti

Answer 2

please help! ;-;

Answer 3

let after t hours the distances D1 traveled by car A

Answer 4

=> D1 = 30 t

Answer 5

car B starts at 10 am and will therefore have spent one hour less than car A when it passes it

Answer 6

after (t - 1) hours, distance D2 traveled by car B

Answer 7

=> D2 = 40 (t - 1) when car B passes car A, they are at the same distance from the starting point and therefore D1 = D2

Answer 8

=> 30 t = 40 (t - 1)

Answer 9

solve the equation for t,
=> 30 t = 40t - 40

=> 10 t = 40 => t = 4

=> car B passes car A at = 9 + 4 = 13 pm

Answer 10

thank you I was so stuck ;-----;