Final answer:
To calculate the cost of cherries and blueberries, multiply the weight by the cost per pound. For 0.5 pounds of cherries and 2.5 pounds of blueberries, the total cost is $12.25.
Step-by-step explanation:
Melanie wants to buy cherries and blueberries to make a fruit tart. Cherries cost $4.50 per pound and blueberries cost $4 per pound. If she buys 0.5 pounds of cherries and 2.5 pounds of blueberries, we can calculate the total cost as follows:
- For cherries, the cost is 0.5 pounds x $4.50/pound = $2.25
- For blueberries, the cost is 2.5 pounds x $4/pound = $10
Therefore, she would spend $2.25 for cherries and $10 for blueberries, resulting in a total of $12.25.
If she buys xx pounds of cherries and yy pounds of blueberries, the total cost can be calculated using the same formula:
- For cherries, the cost is xx pounds x $4.50/pound = $4.50x
- For blueberries, the cost is yy pounds x $4/pound = $4y
The total cost would then be $4.50x + $4y.