A = 6x – 18°
B = 14x + 38°

Answer

x = 8

<A = 30

Step-by-step explanation:

6x - 18 + 14x + 38 = 180

Like terms

20x-20=180

subtract

20x = 160

Divide

x=8

Solve for <A

6(8) - 18

Simplify

48 - 18

30

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x