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Bonjour voici mon exercise de math pouvez vous m'aidez (résonnement en anglais) merci, beaucoup
In order to pay for his studies, Ben sells hot dogs during the summer. He pays $80 to rent his stall for the summer. It costs him $0,70 to make each hot dog. He sells his hot dogs for $2 each. How many hot dogs does he have to sell to make business profitable? Explain your answer.​

Sagot :

NELLAVANECK

y is the number of hot dogs Ben needs to sell

80+0.70*y < 2*y

0.7y -2y < -80

-1.3y <-80

1.3y>80

y> 80/1.3 (800/13)

y>≈62

Ben needs to sell at least 62 hot dogs to make his business profitable.