The Williams' family has a goal to save $690 for their family vacation. The trip is 5 weeks away. How much money per week should the Williams' family save to reach their goal?

690 ÷ 5 = 138

Step-by-step explanation:

They should save $138 each weak.

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1