Final answer:
Lynette raised $522. By setting up equations based on the sum of money raised and the given ratio, we calculated the constant multiplier k and used it to determine Lynette's contribution.
Step-by-step explanation:
To solve how much money Lynette raised, let's denote Lynette's amount as L, Eunice's amount as E, and Xueting's amount as X. We are given the following information:
- L + E = $578
- L + X = $802
- E : X = 1 : 5
From the ratio E : X = 1 : 5, we can say that E = k and X = 5k, where k is a constant multiplier.
We can now express E and X in terms of k and substitute into the first two equations provided.
L + k = $578 ... (1)
L + 5k = $802 ... (2)
By subtracting Equation (1) from Equation (2) we get:
4k = $224
Hence, k = $56. Now, we can find Lynette's amount by substituting k back into Equation (1).
L + $56 = $578
L = $578 - $56
L = $522
Therefore, Lynette raised $522.