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Sholpan [36]
3 years ago
6

It takes karina 36 minutes to solve 22 problems. What is her unit rate in problems per minute

Mathematics
1 answer:
andrezito [222]3 years ago
6 0

11/18 or .61111111...

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Answer:

x = 9

y = 9

Step-by-step explanation:

Given :

Let :

Kenyan French roast coffee = x

Cost per x = $8

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x + y = 18 - - - - (1)

8x + 10y = 9 * 18 ;

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From (1):

x = 18 - y

Put x = 18 - y in (2)

8(18 - y) + 10y = 162

144 - 8y + 10y = 162

2y = 162 - 144

2y = 18

y = 9

x = 18 - y

x = 18 - 9

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if your asking that kind of question

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