Jake is comparing the prices of two mattress cleaning companies. Company A charges $30 per mattress and an additional $13 as ser
vice 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?
I think it's : Part A ; $30 * (x) + $13 $28 * (x) + $15 Part B ; so $30 * 4 + $13 = $133 vs. $28 * 4 + $15 = $111 so that would mean company B Would charge the least amount. Part C ; the difference between company a and company B prices is $22.
75% families spent $260.00 or less on electricity in August because 3 quartiles are below the point marking the $260.00 mark. Each quartile represents 25% of the data entries and if 3 quartiles are below $260.00, then 25 * 3 = 75% of the families spent $260.00 or less on electricity in August.
