Jim decided to go for a drive in his car. he started out at 0 miles per hour(mph). he then accelerated 20 mph down his street. then, to get on the highway he accelerated another 35 miles per hour. a car was going slow in front of him so he slowed down 11 mph. he then go off the highway, so he slowed down another 7 mph. at what speed was he driving?

37 mph

Step-by-step explanation:

if he starts at 0 then goes to 20 then add another 35 which gives you 55mph then he slows down you decrease 11 which is 44 then decrease again 7 gives you 37mph

ad = ae + ed = y + 7

similar triangles therefor

ac/ab = ad/ae

6/4 = (y + 7) / y

cross multiply

6y = 4(y + 7)

6y = 4y + 28

2y = 28

y = 14

step-by-step explanation: