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3 years ago

15

What is the greatest common factor or 12a and 9a^2

1 answer:

adell [148]3 years ago

8 0

The factors of 9 are 1, 3 and 9.
The factors of 12 are 1, 2, 3, 4, 6 and 12.
The factor of a and a^2 is just "a."

For coefficients, the common factors of 9 and 12 are 1 and 3 only. But the greatest common factor is 3.
For variables, the greatest factor is just also "a."

Multiplying these two factors, we get the answer: 3a

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3 years ago

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Answer:

The cost of each pen is <u>$0.14</u> and the cost of each pencil is <u>$0.03</u>.

Step-by-step explanation:

Given:

Paulie ordered 250 pens and 250 pencils.

The pens cost 11 cents more than the pencils.

Her order costs $42.50.

Now, to find the cost of each pen and pencil.

Let the price of a pencil be $x.$

So, the price of 250 pencils = $250x.$

And the price of a pen be $x+0.11.$

Thus, the price of 250 pens = $250(x+0.11).$

Now, to get the cost of each pen and pencil:

According to question:

$250x+250(x+0.11)=42.50$

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<em>Subtracting both sides by 27.50 we get:</em>

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<em>Dividing both sides by 500 we get:</em>

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