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2 years ago

11

Find the result when 68 is decreased by 50%.

1 answer:

Sergeeva-Olga [200]2 years ago

4 0

Answer:

34

Explanation:

When 68 is decreased by 50%, that would mean that it is decreasing by half of that number. Half of that number would be 34 and that would be your answer.

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2 years ago

Suppose babies born in a large hospital have a mean weight of 3685 grams, and a variance of 330,625. If 113 babies are sampled a

otez555 [7]

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2 years ago

How to know when to use c2=a2+b2 or a2+b2=c2 in a question that doesnt have a shape

Viefleur [7K]

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2 years ago

The salaries Marc has earned in the past 4 years are shown.

Rina8888 [55]

Answer:

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3 years ago

Emily has $3.15 worth of dimes and quarters. She has twice as many dimes as quarters. Determine the number of dimes and the numb

Cerrena [4.2K]

Answer:

The number of dimes is <u>14</u> and the number of quarters is <u>7</u>.

Step-by-step explanation:

Given:

Emily has $3.15 worth of dimes and quarters.

<em><u>She has twice as many dimes as quarters.</u></em>

Now, to determine the number of dimes and the number of quarters.

Let the number of quarters be $x.$

And the number of dimes be $2x.$

So, the total worth of dimes and quarters = $3.15.

Now, to get the number of dimes and quarters:

According to question:

$0.10(2x)+0.25x=3.15$

$0.20x+0.25x=3.15$

$0.45x=3.15$

<em>Dividing both sides by 0.45 we get:</em>

$x=7.$

<em>Thus, the number of quarters</em> = 7.

<em>So, the number of dimes</em> = $2x=2\times 7=14.$

Therefore, the number of dimes is 14 and the number of quarters is 7.

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2 years ago