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3 years ago

PLEASE HELP IM BEGGING YOU PLEASE I also need work shown

Mathematics

1 answer:

Oksanka [162]3 years ago

3 0

Answer:

x=3

y=-4

Step-by-step explanation:

$\left \{ {{y=2x-10} \atop {y=-3x+5}} \right. \\\left \{ {{2x-10=-3x+5} \atop {y=-3x+5}} \right. \\\left \{ {{5x=15} \atop {y=-3x+5}} \right. \\\left \{ {{x=3} \atop {y=-3*3+5}} \right. \\\left \{ {{x=3} \atop {y=-4}} \right.$

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garik1379 [7]

Answer:

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Step-by-step explanation:

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3 years ago

Chad has a rope that is 8 yards long. How many pieces of rope measuring 4/7 of a yard can he divide his rope into?

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Answer:

Step-by-step explanation:

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3 years ago

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zheka24 [161]

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3 years ago

Read 2 more answers

The number of items (N) that can be purchased for a given amount of money is inversely proportional to the cost (C) of an item.

mars1129 [50]

Answer:

436 items

Step-by-step explanation:

When a quantity A is inversely proportional to another quantity B, we can write:

$A=\frac{k}{B}$

Where k is the proportionality constant [that we need to find]

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$N=\frac{k}{C}$

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$N=\frac{k}{C}\\480=\frac{k}{4.90}\\k=4.90*480\\k=2352$

Now, as second step, we need this time to find N, when

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