Question 414251
"two angles are complementary if their sum is 90 degrees. find the measure of each angle if the second angle is twice the first. (let first angle = x)"


x = first angle
90 - x = 2nd angle {the two angles add to 90}


90 - x = 2x {the second is twice the first}
90 = 3x {added x to both sides} 
x = 30 {divided both sides by 3}
90 - x = 60 {substituted 30, in for x, into 90 - x}


the two angles are 30 and 60
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