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3 years ago

What is a divided by a% of a?

Mathematics

1 answer:

Elis [28]3 years ago

7 0

Answer:

$\frac{100}{a}$

Step-by-step explanation:

Hello!

a% is the same as $\frac a{100}$ .

a% of a can be found by multiplying them both, giving us $\frac {a^2}{100}$

<h3>Solve:</h3>

$\frac{a}{\frac{a^2}{100}}$
$a * \frac{100}{a^2}$
$\frac{100a}{a^2}$
$\frac{100}{a}$

The value of the expression is $\frac{100}{a}$

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-37=5w-7 <br><br> w=<br><br><br> Please I need an answer ASP

grin007 [14]

Answer:

-6

Step-by-step explanation:

-37+7=5w

-30=5w

w=-30÷5

w=-6

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3 years ago

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"in 2012, total u.s. bottled water consumption increased to 9.67 billion gallons, up from 9.1 billion gallons in 2011. in fact,

Maru [420]

Using proportions, it is found that the estimate of the the per capita consumption from 2011 was of 29.25 gallons.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

The amount in 2012 was a increase of 5.3% from 2011, that is, 105.3% = 1.053 of x, and the consumption per capita was of 30.8 gallons, hence:

1.053x = 30.8

x = 30.8/1.053

x = 29.25 gallons.

More can be learned about proportions at brainly.com/question/24372153

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2 years ago

0.6 minus x equals... Show your work

nordsb [41]

X= -0.6.........no work needed there is no equation

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3 years ago

A square has an area that is less than 100 m. What is a reasonable range for the graph of the

Tpy6a [65]

Answer:

Step-by-step explanation:

0<y<100

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3 years ago

Read 2 more answers

Find the value of each variable

aniked [119]

Answer:

Answer d)

$a= 10*\sqrt{3}$ $b=5*\sqrt{3}$ , $c=15$ , and $d=5$

Step-by-step explanation:

Notice that there are basically two right angle triangles to examine: a smaller one in size on the right and a larger one on the left, and both share side "b".

So we proceed to find the value of "b" by noticing that it the side "opposite side to angle 60 degrees" in the triangle of the right (the one with hypotenuse = 10). So we can use the sine function to find its value:

$b=10*sin(60^o)= 10*\frac{\sqrt{3} }{2} = 5*\sqrt{3}$

where we use the fact that the sine of 60 degrees can be written as: $\frac{\sqrt{3} }{2}$

We can also find the value of "d" in that same small triangle, using the cosine function of 60 degrees:

$d=10*cos(60^o)=10* \frac{1}{2} = 5$

In order to find the value of side "a", we use the right angle triangle on the left, noticing that "a" s the hypotenuse of that triangle, and our (now known) side "b" is the opposite to the 30 degree angle. We use here the definition of sine of an angle as the quotient between the opposite side and the hypotenuse:

$sin(30^o)= \frac{b}{a} \\a=\frac{b}{sin(30)} \\a=\frac{5*\sqrt{3} }{\frac{1}{2} } \\a= 10*\sqrt{3}$

where we used the value of the sine function of 30 degrees as one half: $\frac{1}{2}$

Finally, we can find the value of the fourth unknown: "c", by using the cos of 30 degrees and the now known value of the hypotenuse in that left triangle:

$c=10*\sqrt{3} * cos(30^o)=10*\sqrt{3} *\frac{\sqrt{3} }{2} \\c= 5*3=15$

Therefore, our answer agrees with the values shown in option d)

6 0

3 years ago