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Mathematics 21 Online
OpenStudy (brooke..help00):

@Rhondasommer

OpenStudy (brooke..help00):

is comparing the prices of two mattress cleaning companies. Company A charges $30 per mattress and an additional $13 as service charges. Company B charges $28 per mattress and an additional $15 as service charges. Part A: Write equations to represent Company A's and Company B's total mattress cleaning charges for a certain number of mattresses. Define the variable used in the equations. (4 points) Part B: Which company would charge less for cleaning 4 mattresses? Justify your answer. (3 points) Part C: How much money is saved by using the services of Company B instead of Company A to clean 7 mattresses? (3 points)

RhondaSommer (rhondasommer):

oh my heck

RhondaSommer (rhondasommer):

i typed it all out. and my computer froze

OpenStudy (brooke..help00):

Oh gosh- I am so sorry :(

RhondaSommer (rhondasommer):

a) A y=30(x)+13 B y=28x+15 y=total price x=amount of mattresses b) A y=30(4)+13 y=120+13 y=133 B y=28(4)+15 y=112+15 y=127 B is cheaper. c) b) A y=30(7)+13 y=210+13 y=223 B y=28(7)+15 y=196+15 y=211 You save $12.

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