Solved on Sep 11, 2023

Find the mileage range where Company A's rental cost is no more than Company B's: 25+0.8m40+0.6m25 + 0.8m \leq 40 + 0.6m

STEP 1

Assumptions1. Company A charges an initial fee of 25andanadditional80centsforeverymiledriven..CompanyBchargesaninitialfeeof25 and an additional80 cents for every mile driven. . Company B charges an initial fee of 40 and an additional60 cents for every mile driven.
3. We denote the number of miles driven by mm.
4. We are looking for the mileages for which Company A charges no more than Company B.

STEP 2

First, we need to write the cost function for each company. The cost function is the initial fee plus the cost per mile times the number of miles driven.
For Company A, the cost function isCostA=$25+0.80mCost_A = \$25 +0.80mFor Company B, the cost function isCostB=$40+0.60mCost_B = \$40 +0.60m

STEP 3

We are looking for the mileages for which Company A charges no more than Company B. This means that the cost function for Company A should be less than or equal to the cost function for Company B.
This gives us the inequalityCostACostBCost_A \leq Cost_B

STEP 4

Substitute the cost functions of Company A and Company B into the inequality$25+0.80m$40+0.60m\$25 +0.80m \leq \$40 +0.60m

STEP 5

To simplify the inequality, we can subtract 0.60m0.60m from both sides$25+0.20m$40\$25 +0.20m \leq \$40

STEP 6

Next, subtract 25frombothsidestoisolatethetermwith25 from both sides to isolate the term with m$0.20m \leq \$15

STEP 7

Finally, divide both sides by 0.200.20 to solve for mmm$15/0.20m \leq \$15 /0.20

STEP 8

Calculate the value of mmm75m \leq75So, for mileages of75 miles or less, Company A will charge no more than Company B.

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