Caroline drove 350 miles to her grandmother's house. the trip took her 51/4 hours. what is the average speed to miles per hour?
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Hi there!
To solve, we can use right triangle trig.
We are given the value of ∠A, and side "x" is its adjacent side. We are also given its opposite side, so:
tan (A) = O / A
tan (33) = 25 / x
Solve:
x · tan(33) = 25
x = 38.49 ≈ 38.5