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3 years ago

Which expression is equivalent to -6-(-2)?

Mathematics

2 answers:

Andre45 [30]3 years ago

8 0

Answer:

-2+6

Step-by-step explanation:

-6-(-2)

-6+2

-4

-2+6

const2013 [10]3 years ago

5 0

The answer is -4 because two negatives is the same as adding so -6 + 2 = -4

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Step-by-step explanation:

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3 years ago

The amount of chlorine in a swimming pool is proportional to the volume of water. The pool has 2.5 milligrams of chlorine per li

stira [4]

Answer:

There are <u>20,000 milligrams</u> chlorine in the pool.

Step-by-step explanation:

Given:

The chlorine per liter of water in the pool is 2.5 milligrams.

The volume of water in the swimming pool is 8000 gallons.

Now, to find the quantity of chlorine in the pool.

Let the quantity of chlorine be $x.$

The gallons of water in the swimming pool = 8000.

The milligrams of chlorine per liter of water in the pool = 2.5.

According to question, the amount of chlorine in the swimming pool is proportional to the volume of water.

So, 2.5 mg of chlorine is equivalent to 1 liter.

Thus, $x$ is equivalent to $8000.$

Now, to get the quantity of chlorine by using cross multiplication method:

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<em>By cross multiplying we get:</em>

$20000=x\\\\x=20,000\ mg.$

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6 0

3 years ago

What is the simplest form of this expression? 2(y-1) 8

NemiM [27]

I hope this works

2(y-1)8=

16(y-1)

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2 years ago

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The right answer is c

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3 years ago

The length of each side of a square was decreased by 2 inches so the perimeter is now 49 inches. What was the original length of

aleksley [76]

The Original length of each side of square was 14.25 inches.

Step-by-step explanation:

Perimeter of a square is given by:

Perimeter = 4 * side

Let x be the original length of each side of square

decreasing 2 inch will mean

$x-2$

Perimeter of square after reducing 2 inches from each side

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So,

The Original length of each side of square was 14.25 inches.

Keywords: Perimeter, square

Learn more about perimeter at:

#LearnwithBrainly

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3 years ago