Adelivery person uses a service elevator to bring boxes up to an office. the delivery person weighs 160 lb. and each box of books weighs 50 lb. the maximum capacity of the elevator is 1000 lb. how many boxes of books can the delivery person bring up at one time?

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated

yes

step-by-step explanation:

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