Tom had 322 dollars to spend on 9 books. after buying them he had 16 dollars. How much did each book cost?
2 answers:
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Answer:
.
Step-by-step explanation:
We are given that and
(because that's the ground), so substituting that into
gives
.
Hi there!
Use the Pythagorean theorem to find the length of the line.
If we draw an imaginary right triangle using the given line as the hypotenuse, we can derive a height of 6 units and a length of 10 units.
Use the Pythagorean theorem equation:
c² = a² + b²
Plug in the height and length:
c² = 6² + 10²
Simplify:
c² = 36 + 100
c² = 136
Take the square root of both sides:
c = √136. The correct answer is D.