I need help pleaseee

Mathematics

1 answer:

laiz [17]4 years ago

8 0

7 because 3 times 7 is equals 21

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Solve the quadratic equation by completing the square.<br> =+x^2+16x +61=0

Vlad1618 [11]

X^2 + 16x + 61 = 0
x^2 + 16x = -61
x^2 + 16x + 64 = -61 + 64
(x + 8)^2 = 3
x + 8 = (+-) sqrt 3
x = -8 (+-) sqrt 3

x = -8 + sqrt 3...and x = -8 - sqrt 3 <== ur solutions

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3 years ago

Sam spent a total of $90 at the grocery store. of this amount, he spent $72 on fruit. What percentage of the total did he spend

mylen [45]

Answer:

80%!

you can put the amount spent on fruit over the total and compare it to a percentage table!

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3 years ago

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Help me please!! I don't know what to do I'm so confused!!!

lara [203]

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How to reduce into simpler terms.?

Sveta_85 [38]

Answer:

The simplest form of the fraction $\frac{45}{100}$ is $\frac{9}{20}$ .

i.e.

$\frac{45}{100}=\frac{9}{20}$

Step-by-step explanation:

Here are some simple observations regarding how to reduce a fraction into simpler terms:

A fraction is reduced to lowest or simplest terms by finding an equivalent fraction in which the numerator and denominator are as small as possible.

In order to reduce a fraction to lowest or simplest terms, divide the numerator and denominator by their (GCF). Note that (GCF) is also called Greatest Common Factor .

So, lets take a sample fraction and reduce into simpler terms.

Considering the fraction

$\frac{45}{100}$

$\mathrm{Find\:a\:common\:factor\:of\:}45\mathrm{\:and\:}100\mathrm{\:in\:order\:to\:cancel\:it\:out}$