brizz1502
25.09.2020 •
Mathematics
At the baseball stadium two burgers and two hot dogs cost 15.56 at the same prices three burgers and five hot dogs cost 29.92 what is the price of a burger
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Ответ:
Step-by-step explanation:
2x + 2y = 15.56
3x + 5y = 29.92
6x + 10y = 59.84
-6x - 6y = -46.68
4y = 13.16
y = $3.29 hot dog
2x + 2(3.29) = 15.56
2x + 6.58 = 15.56
2x = 8.98
x = $4.49 hamburger
Ответ:
300m
Step-by-step explanation:
20 x 15 = 300