Yefim S. answered 05/31/19
Math Tutor with Experience
179 degree is right.
Keyonta H.
asked 05/30/19A and ∠B are supplementary angles. If m∠A=(x−28)∘ and m∠B=(7x−24)∘, then find the measure of ∠B.
Yefim S. answered 05/31/19
Math Tutor with Experience
179 degree is right.
Sam Z. answered 05/30/19
Math/Science Tutor
x-28+7x-24=180
8x-52=180
8x=232
x=29
29-28=1°
203-24=179°
Carol H. answered 05/30/19
Masters' Degree in Mathematics with 35 years Teaching Experience.
Supplementary angles have a sum of 180°.
x - 28 + 7x - 24 = 180
8x - 52 = 180
8x = 232
x = 29°
Keyonta,
The sum of two supplementary angles is 180 degrees.
Given: m∠A=(x−28)∘
m∠B=(7x−24)∘
m∠A + m∠B = 180
(x - 28) + (7x - 24) = 180
8x - 52 = 180
8x = 232
x = 29
Now we substitute x to find angle B
m∠B=(7x−24)∘
m∠B=(7x−24)∘
= (7*29 −24)∘
= 179o
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