One of the unknown angles (let's called it n) has a complement (meaning their sum adds up to 90 degrees) and the other angle is 8 times the unknown angle (8n)

With all this information, you should have the equation:

n + 8n = 90

To solve, combine like terms to get:

9n = 90

Divide by 9 on both sides to isolate the variable n.

n = 10

Now we plug back in to find our angle measurements. The first angle, n, is 10 degrees. The second angle, 8n, is 8 * 10 which is 80; the second angle is 80 degrees.

5 0

3 years ago

A wool sweater originally costs $42.00. if the sweater is on sale for 25% off, what is the new cost of the sweater? $

jolli1 [7]

42 (1- 25/100) = 63/2 = 31.5 dollars

answer is $31.50

hope it helps

8 0

3 years ago

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