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asndjsd9397
10.01.2020 •
Mathematics
138) amanda and jenny are selling fruit for a school fundraiser. customers can buy small boxes of oranges and large boxes of oranges. amanda sold 5 small boxes of oranges and 5 large boxes of oranges for total of $155. jenny sold 10 small boxes of oranges and 12 large boxes of oranges for a total of $ 346. find the cost each of one small box of oranges and one large box of oranges? .
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Ответ:
5s+5L=155
10s+12L=346
Now we isolate one of the variables.
5s = 155 - 5L
s = 31 - L
Now we substitute s in the other equation with this equation.
10(31-L) + 12L = 346
310-10L + 12L = 346
2L = 36
L = $18
Now to find s we need to plug L into one of the equations.
10s + 12(18) = 346
10s + 216 = 346
10s = 130
s = $13
A large box costs$18 and a small box costs $13
Hope this helps.
Ответ:
Step-by-step explanation: