boo3972
24.06.2019 •
Mathematics
Apples are on sale for \$3.12$3.12dollar sign, 3, point, 12 per kilogram. is the total cost of the apples proportional to the total mass?
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Ответ:
Since every kilo of apples cost $3.12, it is directly proportional to the total weight (which is not exactly the same as mass).
Step-by-step explanation:
Ответ:
cross multiply
(7)(g) = (2)(63)
7g = 126
g = 126/7
g = 18
so they sold 63 red apples and 18 green apples...for a total of (63 + 18) = 81 apples sold