7 1/2 divided by 3/4 =

Mathematics

1 answer:

Minchanka [31]3 years ago

3 0

Answer:

Step-by-step explanation:

$7 \frac{1}{2} \div \frac{3}{4} \\$

$\frac{15}{2} \div \frac{3}{4} \\$

$\frac{15}{2} \times \frac{4}{3} \\$

$\frac{60}{6} = 10 \\$

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Zolol [24]

Slope is 1.3

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3 years ago

Solve for x in the equation x2+2x+ 1 = 17.

Tresset [83]

For this case we must solve the following quadratic equation:

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Subtracting 17 from both sides of the equation we have:

$x ^ 2 + 2x + 1-17 = 0\\x ^ 2 + 2x-16 = 0$

The solution of the equation is given by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Where:

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Substituting the values we have:

$x = \frac {-2 \pm \sqrt {2 ^ 2-4 (1) (- 16)}} {2 (1)}\\x = \frac {-2 \pm \sqrt {4 + 64}} {2}\\x = \frac {-2 \pm \sqrt {68}} {2}\\x = \frac {-2 \pm \sqrt {2 ^ 2 * 17}} {2}\\x = \frac {-2 \pm2 \sqrt {17}} {2}\\x = -1 \pm \sqrt {17}$

Thus, we have two roots:

$x_ {1} = - 1+ \sqrt {17}\\x_ {2} = - 1- \sqrt {17}$

Answer:

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3 years ago

Nathan usually drinks 36 ounces of water per day he read that he should drink 64 ounces of water per day if he starts drinking 6

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First determine how much it increased by. 36+X=64
X=28

It increased by 28

Now determine what percentage 28 is of 36
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After you round, your answer is 78%

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