Darleen gets $10 a week allowance. She walks her neighbor's dog 6 days each week and earns $3 each day. She earns $7 an hour doing odd jobs. Darleen wants to save $15 a week, give $5 a week to charity, and have at least $20 each week to spend. How many hours of odd jobs does she need to each week to earn enough money?
So she wants $40 per week to spend and save. Let x = hours.
10 + (6*3) + 7x ≥ 40
Solve for x.
EASY
To calculate the number of hours of odd jobs Darleen needs to do each week, we need to determine the total amount of money she needs to earn, and then divide it by her hourly rate.
First, let's calculate the total amount of money Darleen needs each week:
Weekly allowance: $10
Earnings from walking the dog: 6 days * $3/day = $18
Amount she wants to save: $15
Amount she wants to give to charity: $5
Amount she wants to have for spending: $20
Total amount needed: $10 + $18 + $15 + $5 + $20 = $68
Now, we can calculate the number of hours of odd jobs Darleen needs to do each week. Let's assume her hourly rate is $7:
Number of hours of odd jobs needed = Total amount needed / Hourly rate
Number of hours of odd jobs needed = $68 / $7 = 9.71 (rounded up to the nearest whole number)
Therefore, Darleen needs to work approximately 10 hours of odd jobs each week to earn enough money to meet her financial goals.