escalantesilvia escalantesilvia
  • 03-10-2017
  • Mathematics
contestada

A and B are supplementary angles. If A = 7x - 18 and B = 8x + 3, find x

Respuesta :

choixongdong
choixongdong choixongdong
  • 03-10-2017
supplementary angles, sum = 180
7x - 18 + 8x + 3 = 180
15x - 15 = 180
15x = 195
    x = 13

answer
x = 13
Answer Link

Otras preguntas

Mathematics Question! Mika estimated the sum of 189.27, 15.8, and 11.2 by rounding each number to the nearest whole. What was Mika’s estimate and what is the ac
The volume of a cube is 125mm3. What is the length of its side?
A piece of ribbon is cut into three pieces that have length in the ratio 7:8:9. The length of the ribbon is 96 centimeters. Each centimeter is worth 75 cents. H
The skateboard ramp has a slope of 2/5 if the height is 6 what is the width?
Please help asap.... I'll mark brainliest
–3(2y–9)? a n s w e r
Complete the following sentence: The famous singer was from a(an) town on the northwest coast of the country A. stupor B. calamity C. commiseration D. obscure​
the density of an object does not change when you change the shape of it because
Giving brainliest!!!!!!!!!!!!!!!!! What is the difference between the major groundwater zones, including the saturated and unsaturated zones and the water table
Find the exact value of x.