Question

giving medals!!!
Two cars start at the same place and head in opposite directions. The speed of the first car is 9 less than the speed of the second car. In 1 hour the two cars are 175 miles apart. Find the speed of the second car.

Answer 1

184

Answer 2

1 X ( x+ x+9) = 175

2x + 9 = 175

2x = 166

x = 83 mph

x+9 = 92 mph ANSWER

Answer 3

or????84

Answer 4

good job @alyygirl

Answer 5

which answer??

Answer 6

yours

Answer 7

92 or 84?

Answer 8

92

Answer 9

distance 1 + distance 2 = 175, assuming d=r(t)
d1 = (R-9) (1) = R-9
d2= (R)(1)= R
Plug in :
d1+d2= 175
R-9 + R = 175
2R = 184
R=92 mph

Answer 10

ok thanks ":)