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antoniya [11.8K]
3 years ago
14

In the morning, Jasmine biked to her grandma's house in 45 minutes. When she was biking back home in the evening it was foggy an

d she went 4 mph slower. The trip back took her 1 hour and 10 minutes. How far from her house does her grandmother live?
EXPLAIN YOUR THINKING!
Mathematics
1 answer:
Mars2501 [29]3 years ago
7 0
Let x = speed and y = distance

y = x * 45

y = (x - 4) * 70

45x = 70x - 280

-25x = -280

x = 11.2

Put it back into the first equation:

y = 11.2 x 45

y = 504miles

Hope this helps! Any questions let me know :)
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