Your beginning balance on your lunch account is $42. You buy lunch for $1.80 every day and sometimes buy a snack for $0.85. After 20 days, you have a balance of $0.05. How many snacks did you buy?
HELP
Your beginning balance on your lunch account is $42. You buy lunch for $1.80 every day and sometimes buy a snack for $0.85. After 20 days, you have a balance of $0.05. How many snacks did you buy?
HELP
Explaination:
First your going to want to multiply the amount of days by how much money a school lunch costs:
1.80 x 20 = $36
The next step you will minus the amount spent by the beginning balance on your lunch account:
42 – 32 = $6
Then you will want to add the amount of money it costs for a snack untill it adds up high enough where it is close to the amount of money left (or you cant add any more):
0.85 + 0.85 + 0.85 + 0.85 + 0.85 + 0.85 + 0.85 = $5.95
You then count the times you added 0.85 which would be 7 times.
You can also multiply 0.85 by 7 to shorten it up:
0.85 x 7 = $5.95
This would leave $0.05 left.
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Final answer:
After 20 days you would have 7 snacks total.
I hope this helps you out!