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2 years ago

Read the word problem below.

Mathematics

2 answers:

Alenkinab [10]2 years ago

7 0

Answer:

There are 28 blue marbles.

Step-by-step explanation:

Antonio has 15 green marbles and 12 red marbles. The rest of the marbles are blue.

Let the number of blue marbles be x

Total marbles green plus red = $15+12=27$

Now, Antonio has a total of 55 marbles.

Equation forms:

$55=x+27$

We will subtract 27 from 55 to get x.

= $55-27=x$

Hence x = 28

Therefore, there are 28 blue marbles.

MAVERICK [17]2 years ago

5 0

He has 28 blue marbles 15+12-55=28

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Viktor [21]

Answer:

$x=2\sqrt{5}$

Step-by-step explanation:

If that is a square, then all sides are the same. Therefore, it's a $\sqrt{10}$ by $\sqrt{10}$ shape. We'll use Pythagorean Theorem to find the diagonal.

$a^2+b^2=c^2\\\sqrt{10}^2+ \sqrt{10}^2=x^2\\10+10=x^2\\20=x^2\\\sqrt{20}=x\\\sqrt{4*5}=x\\ 2\sqrt{5}=x$

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