Answer:
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Answer:
Complementary and supplementary both describe an angle relationship. Complementary angles are angles that when added are equal to 90 degrees, (right angle). Supplementary angles are angles that when added together are equal to 180 degrees, (straight line). Two angles do not have to be adjacent to be complementary or supplementary.
Percent means parts out of 100 so x%=x/100
38%=38/100=0.38
'of' can be translated to as multiply
0.38 times 2,000,000=760,000
5 is to 7 as is to 49 is to 51
L - Lane's age
m- Mel's age.
Lane is 10 times Mel's age, so 10m = l
difference in their age is 27 so l - m = 27
Substitute l = 10m and you'll have:
10m - m = 27
9m = 27 /:9
m=3
And l = 10m = 10*3 = 30
So Lane has 3 years old and Mel has 30 years old.