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pickupchik [31]
3 years ago
7

6 calculators cost $160 what is the rate and the unit rate

Mathematics
1 answer:
BigorU [14]3 years ago
6 0

Answer:

\dfrac{\$160}{6~calculators}

\dfrac{\$26.67}{calculator}

Step-by-step explanation:

The rate for the 6 calculators is

\dfrac{\$160}{6~calculators}

To find the unit rate, divide 160 by 6.

The unit rate is

\dfrac{\$26.67}{calculator}

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Which expression is equivalent to (3x² + 3x - 3) - (6x² - 4x - 2)?
Marat540 [252]

Answer:

A. 12x^{4} -4x^{3} +3x^{2} +3x+20

Step-by-step explanation:

For this problem, we have to combine like terms.

Let's look at the equation:

(12x^{4} -4x^{3} +7x+6)+(3x^{2} -4x+14)

12x^{4, -4x^{3}, 3x^{2} do not have any other like terms, so we keep all in the final answer.

7x and -4x are like terms, so we combine them. 7x-4x=3x

14 and 6 are like terms, so we combine them. 14+6 = 20

Let's put everything into the final equation:

12x^{4} -4x^{3} +3x^{2} +3x+20

So, the final answer is A. 12x^{4} -4x^{3} +3x^{2} +3x+20

Hope this helps! If you have any questions about my work, leave them in the comments below!

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Step-by-step explanation:

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