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aivan3 [116]
3 years ago
11

write two division problems related to the multiplication problem below. 8×(-2)=-16

Mathematics
1 answer:
Mrac [35]3 years ago
7 0

We can write two division problems related the given equation as follows.

Division problem one :

Here 8 is in multiplication with -2 on the left side.

so when we bring this 8 on the right side, we will have to apply opposite operation of multiplication which is division.

so dividing (-16) by 8 on the right side, we have:

-2=\frac{-16}{8}

Division problem two :

Here -2 is in multiplication with 8 on the left side.

so when we bring this (-2) on the right side, we will have to apply opposite operation of multiplication which is division.

so dividing (-16) by (-2) on the right side, we have:

8=\frac{-16}{-2}

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Greeley [361]

Answer:

They are 108 8th graders at Jefferson Middle School

Step-by-step explanation:

324 x 5/12 = 135 7th graders

324 x 3/12 = 81 9th graders

324 x 4/12 = 108 8th graders

3 0
3 years ago
If a person runs 1/3 mile in 1/9 of an hour what is the unit rate per hour
Natasha2012 [34]

Answer:

 3 miles per hour

Step-by-step explanation:

he runs 1/3 mile in 1/9 of an hour

then

he runs (we multiply both sides by 9)

 9×(1/3) mile in 9×(1/9) of an hour

then

he runs

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4 0
2 years ago
What is the difference?
Whitepunk [10]

Answer:

\frac{x^2+3x  -12}{(x-5) (x +3)(x+7)}

Step-by-step explanation:

Given

\frac{x}{x^2-2x-15} - \frac{4}{x^2+2x-35}

Required

Calculate the difference

We start by factorizing the denominator of both fractions

\frac{x}{x^2-2x-15} - \frac{4}{x^2+2x-35}

\frac{x}{x^2+3x - 5x -15} - \frac{4}{x^2+7x - 5x-35}

\frac{x}{x(x+3) - 5(x +3)} - \frac{4}{x(x+7) - 5(x+7)}

\frac{x}{(x-5) (x +3)} - \frac{4}{(x-5)(x+7)}

Take LCM

\frac{x(x+7) - 4(x +3)}{(x-5) (x +3)(x+7)}

Open Brackets

\frac{x^2+7x - 4x -12}{(x-5) (x +3)(x+7)}

\frac{x^2+3x  -12}{(x-5) (x +3)(x+7)}

This can't be simplified any further;

4 0
3 years ago
4(x-7)> -26+4x how do I do it and what's the answer
Levart [38]

Answer:

No solutions

Step-by-step explanation:

Open parenthesis:

4x-28>-26+4x

Move all like terms to one side:

-28-26>4x-4x

-54>0

-54 isn't greater than 0, so that means that there are no solutions.

:)

3 0
3 years ago
5x 2 + 15x=0 is a quadratic equation.<br> True<br> False
anastassius [24]

Answer:

True

Step-by-step explanation:

3 0
3 years ago
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