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 equals Infinity multiplied by Infinity

Sudan III dye solution has a high affinity for _____.

Read the lines spoken by Helena in A Midsummer Night's Dream and answer the question. How happy some o'er other some can be! Through Athens I am thought as fa

Solve the expression using the order of operation: Find the hypotenuse of a right triangle if the legs are 8cm and 5cm by using the Pythagorean theorem: (leg^2

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ? a. 4 b.14 c. 16 d.20 e. 50

Algebra 2 semester 1 :(

Lana wants to buy orange ribbon to go around the border of a frame. The frame is a rectangle that’s 16 inches by 20 inches. The craft store has 7 feet of orange

Choose the best answer for what you would say in the following situation. Ask a school counselor what his name is.

What do they following have in common: Popular Sovereignty, Limited Government, Civil Liberties, and Separation of Powers. A) They concern economic development

Need help with this problem