Given the word problem, we can deduce the following information:
1. The ratio of the two complementary angles is 3:7.
To determine the measures of both angles, we must note first that complementary angles are two angles whose measures add up to 90°. So our equation would be:
![3x+7x=90](https://img.qammunity.org/2023/formulas/mathematics/high-school/kr6h3rq9pakzkht5cdpqpkajlwepgzpv80.png)
We simplify the equation above:
![\begin{gathered} 3x+7x=90 \\ 10x=90 \\ x=(90)/(10) \\ x=9 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/high-school/1zkyjqctefd64kcu04wp38jrbg44me7ouf.png)
We plug in x=9 into 3x to get the first angle:
Angle 1 = 3x = 3(9) = 27
Then, we plug in x=9 into 7x to get Angle 2:
Angle 2= 7x=7(9)=63
Therefore, the measures of both angles are 27° and 63°.