Question

The distances (y), in miles, of two cars from their starting points at certain times (x), in hours, are shown by the equations below:

Car A:
y = 52x + 70

Car B:
y = 54x + 56

After how many hours will the two cars be at the same distance from their starting point and what will that distance be?

6 hours, 420 miles
6 hours, 434 miles
7 hours, 420 miles
7 hours, 434 miles

Answer 1

@Mehek14 @

Answer 2

@texaschic101

Answer 3

or anyone lol

Answer 4

@_greatmath7

Answer 5

same thing as the other question

Answer 6

substitute 52x + 70 for y in the second equation for y

Answer 7

\(52x + 70 = 54x + 56\)
subtract 54x - 52x = 2x
subtract 70 - 56 = 14
\(14=2x\)
divide 14/2 = 7
\(7=x\)

Answer 8

so we got ts 7 hours
not we need to find how many miles

Answer 9

ok

Answer 10

C or D

Answer 11

\(y=52*7+70\\52*2=364\\364+70=434\)

Answer 12

so 7 hrs, 434 mi
D

Answer 13

alright hey im not trying to be annoying but i have more questions.. ugh it kinda sucks tho like i feel like im bothering you

Answer 14

nah it's ok

Answer 15

yay thankss ill post and tag you if i have more to give you more medals