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Dmitry_Shevchenko [17]
3 years ago
8

Lupe can ride her bike at a rate of 20 mph when there is no wind. On one particular day, she rode 2 miles against the wind and n

oticed that it took her the same amount of time as it did to ride 3 miles with the wind. How fast was the wind blowing
Mathematics
2 answers:
djverab [1.8K]3 years ago
6 0
2/20-w=3/20+w
40+2w=60-3w
5w=20
w=4mph
kipiarov [429]3 years ago
5 0
<span>Hint: let w=speed of wind in mph. Then 2/(20-w)=3/(20+w). Cross multiply and solve for w.</span>
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Answer:

-2.25

Step-by-step explanation:

9(1-x) = 27Y

9-9x =27y

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x-y= -11/2 equation (2)

by solving 2 equations

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Now, let's solve the equation using substitution.

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