Question

rachel collects vintage dolls. she pays $22 for large ones and $16 for small ones. she spends $120 on 6 dolls. write and solve a system of equations to show how many large dolls and how many small dolls rachel purchased

Answer 1

Explanation:

Let's use L to represent the number of large dolls and S to represent the number of small dolls Rachel purchased.

Based on the problem, we can write the following two equations:

1. L + S = 6 (equation 1 - represents the total number of dolls purchased)

2. 22L + 16S = 120 (equation 2 - represents the total amount spent on dolls)

To solve for L and S, we can use substitution or elimination. Let's use the substitution method:

From equation 1, we can express S in terms of L by subtracting L from both sides :

S = 6 - L

Substitute this equation for S in equation 2:

22L + 16(6-L) = 120

Simplify and solve for L:

22L + 96 - 16L = 120

6L = 24

L = 4

Now that we know L = 4, we can use equation 1 to find S:

L + S = 6

4 + S = 6

S = 2

Therefore, Rachel purchased 4 large dolls and 2 small dolls.