Chris drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took
hours. When Chris drove home, there was no traffic and the trip only took
hours. If his average rate was
miles per hour faster on the trip home, how far away does Chris live from the mountains?
Stacey Warren - Expert brainly.com
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Keisha drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 8 hours. When Keisha drove home, there was no traffic and the trip only took 6 hours. If her average rate was 16 miles per hour faster on the trip home, how far away does Keisha live from the mountains?
distance from home = x
speed = y
time =8 hours
speed = y+16
time = 6 hours
x -8 y = 0 .............1
x -6 y = 96 .............2
multiply (1)by 6
Multiply (2) by 8
6 x -48 y = 0
8 x -48 y = 768
Add the two equations
14 x = 768
x = 55
plug value of x in (1)
1 x -8 y = 0
55 -8 y = 0
-8 y = 0 -55
-8 y = -55
y = 7
x= 55 the distance from home
this is an example of the sum you posted now pls try on ur own