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

Dirk Nowitzki of the Dallas mavericks scored 44 points in a recent basketball game. He scored no 3-point shots, but made a number of 2-point field goals and 1-p
During a recent winter, the ratio of deer to foxes was 7 to 3 in a town. If there was 210 foxes in the town, what was the number of deer in the town?
ray wants the larger of two aquariums.One aquarium has 20 in. by 20 in. and has a height of 18 inches.The other aquarium has a base that is 40 in. by 12in. and
Social needs are acquired through?
need help with this question#20
I need help with the blanks
find the value of x to the nearest whole number. Tan x(degree) = 1.732
How to find the area of a circle ?
How many 1/10 are in 3?
what is the first 12 numbers in pi?