Martin High School has a total of 1,070 laptops and tablets available throughout the campus for student use. The number of laptops is 20 more than twice the number of tablets. How many tablets are available for student use? a) 250
b) 350
c) 700
d) 720

350 tablets tablets tablets

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°