X + 7 + 4x + 3 = 180
5x + 10 = 180
5x = 170
x = 34
Just add the lowest and the highest when u get that answer try multiplying that number that you added by 5,000
He made a mistake on step 2, because he already flipped the fraction 5/8 to 8/5, then hi flipped it back to 5/8, hope this helps.
Answer: C, D
Step-by-step explanation:
Acute angles of right triangles are complementary, and the sine of an angle is equal to the cosine of its complement.
