Please help me out with this?

Question

im not the strongest in math and id appreciate if u would solve this problem for me.

If the measure of 2 complementary angles are in the ratio 2:7, find the measure of the larget angle.

thankyou for answering...and plsz show me how u did this. Thankyou.

Answer 1

ummmm

what grade are you in?

Answer 2

So with complementary angles their sum is 90 degrees, so the angles would have to be 20 degrees and 70 degrees.  2:7 = 20:70.

I think you would do it by saying

2x + 7x = 90

9x= 90

x = 9

So 2x = 20 and 7x = 70.  But I can't explain it any better than that.