Angle A and angle B are complementary angles. If m angle A = (x + 8) and m angle B = (8x + 1)”, then find the measure of angle A.

Question

Angle A and angle B are complementary angles. If m angle A = (x + 8) and m
angle B = (8x + 1)”, then find the measure of angle A.

in progress 0
Thu Thủy 3 years 2021-07-23T13:25:39+00:00 1 Answers 5 views 0

Answers ( )

    0
    2021-07-23T13:27:09+00:00

    Answer:

    17

    Explanation:

    (x + 8) + (8x + 1) = 90

    Combine like terms to get:

    9x + 9 = 90

    Subtract 9 on both sides:

    9x = 81

    Divide by 9:

    x = 9

    Plug in 9 for x in
    9 + 8 = ?

    9 + 8 = 17

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )