Three friends each bought matching necklaces and one pair of earrings. The necklaces were priced at $30.00. If the total bill fo
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Answer:
x = 25
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse x is equal to the sum of the squares on the other two sides, that is
x² = 20² + 15² = 400 + 225 = 625 ( take the square root of both sides )
x = = 25