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tamaranim1 [39]

3 years ago

9

You recycled a total of 30 cans and bottles and made $1.80. For cans you get $0.05 and for bottles

1 answer:

Svetlanka [38]3 years ago

5 0

Answer:

27

Step-by-step explanation:

x + y = 30

0.05x + 0.15y = 1.80

x = 30 - y

1.5 - 0.05y + 0.15y = 1.80

0.10y = 0.30

y = 3 (bottles)

x = 27 (cans)

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Which equation is equivalent to √x^2+81 = x+10

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$x ^ 2 + 81 = x ^ 2 + 20x +100$

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