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MA_775_DIABLO [31]
3 years ago
10

How do you regroup 42-15

Mathematics
1 answer:
iragen [17]3 years ago
5 0
22+22-15 that's the answer
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4 0
3 years ago
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Laura brought some fish; salt water ($2 each) and fresh water ($1 each). If she has 15 fish and the total was $23 - how many of
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Answer:

8 salt water

7 fresh water

Step-by-step explanation:

Let's represent salt water fish with the variable "s" and fresh water fish with the variable "f".

We can make a system of equations - one equation for the number of fish and the other for the price of the fish.

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Solve the system of equations by subtracting the bottom equation from the top equation.

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Laura bought 8 salt water fish. Since the total number of fish is 15, the number of fresh water fish must be 7.

5 0
3 years ago
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