Questions: Linear Equations and Inequalities
Solving a decimal word problem using a linear inequality with the variable...
Dan is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices.
Company A charges an Initial fee of 50 and an additional 50 cents for every mile driven.
Company B has no initial fee but charges 60 cents for every mile driven.
For what mileages will Company A charge more than Company B?
Use m for the number of miles driven, and solve your inequality for m.
Transcript text: Linear Equations and Inequalities
Solving a decimal word problem using a linear inequality with the variable...
Dan is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices.
Company A charges an Initial fee of $50 and an additional 50 cents for every mile driven.
Company B has no initial fee but charges 60 cents for every mile driven.
For what mileages will Company A charge more than Company B?
Use $m$ for the number of miles driven, and solve your inequality for $m$.
Solution
Solution Steps
To determine for what mileages Company A will charge more than Company B, we need to set up an inequality comparing the total costs from both companies. Let \( m \) be the number of miles driven. The cost for Company A is given by \( 50 + 0.50m \) and the cost for Company B is given by \( 0.60m \). We need to find the values of \( m \) for which the cost of Company A is greater than the cost of Company B.
Solution Approach
Set up the inequality: \( 50 + 0.50m > 0.60m \).
Solve for \( m \) by isolating the variable on one side of the inequality.
Step 1: Set Up the Inequality
We start by comparing the costs of the two companies. The cost for Company A is given by:
\[
C_A = 50 + 0.50m
\]
The cost for Company B is given by:
\[
C_B = 0.60m
\]
We need to find when Company A's cost is greater than Company B's cost:
\[
50 + 0.50m > 0.60m
\]
Step 2: Rearrange the Inequality
To solve the inequality, we rearrange it:
\[
50 > 0.60m - 0.50m
\]
This simplifies to:
\[
50 > 0.10m
\]
Step 3: Solve for \( m \)
Now, we isolate \( m \) by dividing both sides by \( 0.10 \):
\[
m < \frac{50}{0.10}
\]
Calculating the right side gives:
\[
m < 500
\]
Final Answer
The mileage for which Company A charges more than Company B is:
\[
\boxed{m < 500}
\]