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2 years ago

11

The number n is doubled and then has y added to it. The result is then divided by 2 and has the number n subtracted from it, the

final result is

1 answer:

marissa [1.9K]2 years ago

4 0

Answer:

$\frac{y}{2}$

Step-by-step explanation:

n is doubled: 2n

y added: 2n + y

divided by 2: n + $\frac{y}{2}$

n subtracted -> final resutl: $\frac{y}{2}$

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2 years ago

Marcos had 15 coins in nickels and quarters. He had 3 more quarters than nickels. He wrote a system of equations to represent th

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Answer:

There are 6 coins in nickels and 9 coins in quarters.

Step-by-step explanation:

Now, to find the solution.

According to question:

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So, the total number of coins:

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<em>Subtracting both sides by 3 we get:</em>

<em /> $2x=12$ <em />

<em>Dividing both sides by 2 we get:</em>

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<em>The number of nickels = 6.</em>

Now, substituting the value of $x$ in equation (1):

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Step-by-step explanation:

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Answer:

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