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

Virtue, Aristotle says, is defined by a mean relative to us. He means that a. facts about an individual and his or her context help determine what one should d

For all integers n, if n2 is odd, then n is odd. Use a proof by contraposition, as in Lemma 1.1 check screen shoot

Is 1/5 equivalent to 2/10

Possible interaction with other medications is a risk when choosing a new health product. Please select the best answer from the choices provided. T F

why, according to Joseph bruchac, have many Native Americans denied their heritage? a. Because they do not care about it b. because of discrimination c. becaus

Which is not true of the twin who was born first? A. formed rocks and ledges B. used his brother C. wanted the humans to have an easy life

Solve for b -1/3 b=9 A.-27 B.-3 C.3 D.27

Who was the second president of the United States? A. Alexander Hamilton B. George Washington C. Thomas Jefferson D. John Adams

14x+7y=217 14x+3y=189

Find an equation of the line described below. Write the equation in slope-intercept form (solved for y), if possible. Slope: undefined Through the point: (3/