The temperature decrease 1.3 per week . the temperature was 53 degrees for weeks .
what will the temperature be in 12 weeks?

37.4 degrees

because 1.3 times 12 is 15.6 and subtract that from 53

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