Paul has $20 to buy either 5 erasers and 30 pencils or 10 erasers and 24 pencils. Each eraser cost $0.30 and each pencil cost $0.60. How much will each option cost? How much change will he get back after buying each option?
A - (5 * 0.3) + (30 * 0.6)
B - (10 * 0.3) * (24 * 0.6)
To find out how much each option will cost, we need to calculate the total cost for each option separately.
For the first option, where Paul buys 5 erasers and 30 pencils:
- The cost of 5 erasers is 5 * $0.30 = $1.50
- The cost of 30 pencils is 30 * $0.60 = $18.00
- The total cost for this option is $1.50 + $18.00 = $19.50
For the second option, where Paul buys 10 erasers and 24 pencils:
- The cost of 10 erasers is 10 * $0.30 = $3.00
- The cost of 24 pencils is 24 * $0.60 = $14.40
- The total cost for this option is $3.00 + $14.40 = $17.40
Now, let's calculate how much change Paul will receive after buying each option. We know that Paul has $20 initially.
For the first option:
- Paul spent $19.50, so the change he will receive is $20 - $19.50 = $0.50
For the second option:
- Paul spent $17.40, so the change he will receive is $20 - $17.40 = $2.60
Therefore, the cost for the first option is $19.50, and Paul will receive $0.50 change.
The cost for the second option is $17.40, and Paul will receive $2.60 change.