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marusya05 [52]
2 years ago
6

3

Mathematics
1 answer:
AleksandrR [38]2 years ago
6 0
I think it’s 10 bc the number of packs of batteries
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To solve the system of equations below, Grace isolated the variable y in the
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Answer:

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Step-by-step explanation:

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Solve the system of linear equations below. 4x - 3y = 17 5x + 4y = 60
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4x-3y=17......(1)
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Multiply equation (1) by 4 and equation (2) by 3:-

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Adding these 2 equations:_

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Now substitute x = 8 in equation (1):-

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3 years ago
How can you understand porportions
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For example, paying $2/pound for apples is the same as paying $6 for 3 pounds:

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That's a portion.

When working with proportions in word problems, you start by setting up one ratio/fraction where you know all the information.  You then set up the second one that's missing a piece of information, but you make sure to set it up using the same structure.

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If your first ratio is "rise over run," then the next ratio has to have the same organization.

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3 years ago
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