Final answer:
Natalie bought 3 watermelons and 10 pints of strawberries for her summer pool party. She spent a total of $45 on the fruits, purchasing 13 items in total.
Step-by-step explanation:
Natalie is planning a summer pool party and is trying to determine how much of each fruit she bought with her budget. The problem we need to solve is a system of linear equations, which is common in algebra.
We know the following:
- Let the number of watermelons be w.
- Let the number of pints of strawberries be s.
- Each watermelon costs $5 and each pint of strawberries costs $3.
- Natalie bought a total of 13 items.
- She spent a total of $45.
We can write two equations to solve for w and s:
- w + s = 13 (the total number of items)
- 5w + 3s = 45 (the total amount spent)
To solve the system, we can use the method of substitution or elimination. Let's use substitution in this case:
From equation 1, we can express w as 13 - s. We can substitute this into equation 2, which gives us:
5(13 - s) + 3s = 45
Now we can solve for s:
65 - 5s + 3s = 45
2s = 20
s = 10
Now that we know Natalie bought 10 pints of strawberries, we can find out how many watermelons she bought by substituting s into equation 1:
w + 10 = 13
w = 3
Therefore, Natalie bought 3 watermelons and 10 pints of strawberries.