5 years ago, my grandfather was five times as old as I was. Three years from now, my grandfather will be three times as old as I
2 answers:
<u>Answer:</u>
13 years
<u>Step-by-step explanation:</u>
5 years ago, let the grandchild's age to be x so the grandfather's age will be 5x.
3 years from now, the grandchild's age will be x+8 (x+3+5) and the grandfather's age will be 5x+8 (5x+3+8).
So we can establish an equation:
Therefore, the present age of the grandchild is x+5 = 8+5 = 13 years and the present age of the grandfather is 5x+5 = 5(8)+5 = 45.
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Answer:
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Step-by-step explanation:
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c^2 = 181 so c = sqrt(181).
to find sin of A do opposite/hypotenuse which gives you 9/sqrt(181)
to find cos of A do adjacent/hypotenuse which gives you 10/sqrt(181)