Question

Liza earned some money by taking care of her neighbor's pet. She bought a drink fort $1.95, and a concert ticket for $30. She bought a ring for $7.20, and then spent two-thirds of the remaining money on a wireless speaker. If Liza has $38.50 left, Write and solve an equation to find the amount of money m Lisa earned by taking care of her neighbor's pet.

Answer 1

lisa earned by taking care of her neighbor's pet = $96.9

Explanation:

let x be the amount of money lisa earned by taking care of her neighbor's pet

she spent on:

drink = $1.95

concert ticket = $30

ring = $7.20

total spent = 1.95 + 30 + 7.20 = $39.15

wireless speaker = 2/3 * (x - 39.15)

money left = $38.50

38.50 = 2/3 * (x - 39.15)

115.5 = 2(x - 39.15)

115.5 = 2x - 78.3

2x = 115.5 + 78.3

2x = 193.8

x = 193.8/2 = $96.9

thus, $96.9 is the amount liza earned by taking care of her neighbor's pet