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3 years ago

8

Ana walked 13/3 miles write 13/3 as a mixed number

2 answers:

VikaD [51]3 years ago

7 0

4 1/3 because 3 times x equals the closest to 13. 3 times four is 12 and it is the closest to thirteen as it can get being under 13, that remainder or remaining one stays one. 4 1/3

Marizza181 [45]3 years ago

4 0

4 1/3
Hope this helped :)
The explanation:
3 goes into 13 4 times. So 4 is your whole number.
You have 1 number left over so that is your numerator.
Your denominator does not change.
You can not simplify any more. <span />

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julia-pushkina [17]

Answer:

$\frac{3x+7}{4x+1}$

Step-by-step explanation:

$\frac{12x^2+31x+7}{16x^2+8x+1}$

First you factor $12x^2+31x+7$ :

$=\left(12x^2+3x\right)+\left(28x+7\right)$

Then you factor out $3x$ from $12x^2+3x$ :

$12x^2+3x$

$=12xx+3x$

$=3\cdot \:4xx+3x$

$=3x\left(4x+1\right)$

Then you factor out 7 from $28x+7$ :

$28x+7$

$=7\cdot \:4x+7$

$=7\left(4x+1\right)$

$=3x\left(4x+1\right)+7\left(4x+1\right)$

Factor out common term $4x+1$ :

$=\left(4x+1\right)\left(3x+7\right)$

$\frac{\left(4x+1\right)\left(3x+7\right)}{16x^2+8x+1}$

Factor $16x^2+8x+1$ :

$=4^2x^2+8x+1$

$=4^2x^2+8x+1^2$

$=\left(4x\right)^2+8x+1^2$

$=\left(4x\right)^2+2\cdot \:4x\cdot \:1+1^2$

Use the perfect square formula:

$=\left(4x+1\right)^2$

$\frac{\left(4x+1\right)\left(3x+7\right)}{\left(4x+1\right)^2}$

Cancel out common factor $4x+1$ :

$=\frac{3x+7}{4x+1}$

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Tasya [4]

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antiseptic1488 [7]

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