P varies directly with s and t. If p=10 when s=-8 and t=12, find t when p=6 and s=15
1 answer:
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Answer:
C
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² + 32² = 48²
x² + 1024 = 2304 ( subtract 1024 from both sides )
x² = 1280 ( take the square root of both sides )
x =
=
= ×
= 16 → C