A motorboat maintained a constant speed of 30 miles per hour relative to the water in going 20 miles upstream and then returning. The total time for the trip was 1.5
hours. Use this information to find the speed of the current.
The speed of the current is miles per hour.

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

sites:

if you was gonna solve for a, a is a   < -12

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step-by-step explanation:

nndncnd cnn

snddnd