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Alika [10]
2 years ago
12

If x,y and z are positive integers and 3x=4y=7z,

Mathematics
1 answer:
Pani-rosa [81]2 years ago
5 0
<span>3x=4y=7z
so
GCF:
3 * 4 * 7 = 84

3x = 84 
  x = 28

4y = 84
  y = 21

7z = 84
  z = 12

</span><span>least possible value for
</span><span>x + y + z = 28 + 21 + 12 = 61
</span>
answer
(d) 61
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How many 1/8 teaspoons are equal to 4 3/4 teaspoons?
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1. Convert fraction into same decimal.

To find this answer, we want to first convert the fraction so that the denominators are the same:

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Divide the original denominator by the needed-to-be denominator.

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Do reversal calculations

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So, now that we know to multiply the original denominator by 2 to get the new denominator, multiple the numeriator by the same.

3           6

_  x 2 = _

4           8

So now, the new equation is:

How many 1/8 teaspoons are equal to 4 6/8 teaspoons.

(The reason why you must convert is because then you can simply say that the fraction is 6 1/8's, which means you just have to worry about the whole numbers.

2. Convert the whole numbers into a fraction to make it easier.

In order to convert whole numbers into fractions, first find the denominator your using. Which in this case, it is 8.

?/8

Now remember, for it to be a whole number, the numeriator and denominator MUST be the same.

8/8 = 1

Now remember, there are four 1's. Multiply the numeriator by 4, but keep the denominator the same or else the equation is ruined.

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3. Add all your information together.

DO NOT forget to add the information you collected during the equation, or else you will get a wrong answer. Add the equation's final answer to the whole numbers final answer.

32 / 8 + 6 / 8 = ?

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Now, all you need to do is look at the numeriator.

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You see 38.

The denominator is the correct denominator that you need. So, the number of the numeriator is the answer to the equation.

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38!

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