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

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

What is the World's Largest Rainforest?

Can someone tell me what is a Genre?

which point lies on the graph of the boundary line of the inequality 3y + 4x< 12

does anybody know how to write 45/70 in simplest form????

factoring-16w²+50wz-21z² please help me solve

What Is a Zionist? Please help me :)

Why was FDR's Court Packing Plan a mistake?

A registered nurse (RN) pays 5% simple interest on a $175,000 mortgage for the construction of a house. What is the yearly interest paid on the mortgage?

what are facts on Loyalists?

A microscope is set so it makes an object appear 4 x 10`2 times larger than its actual size. A virus has a diameter of of 2 x 10`-7 meter. how large will the di