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Jonah is going to the store to buy candles. Small candles cost 3.50 and large candles cost 5.00. He needs to buy at least 20 candles and he can't spend more than 80 dollars. Write a systems of linear inequalities that represents the situation.

Sagot :

Let 
S= #small candles
L= #Large candles 

S+ L =>20
3.50S + 5.00L < 80