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3 years ago

I NEED HELP ABOUT WHAT Q=

Mathematics

1 answer:

alisha [4.7K]3 years ago

5 0

Answer:

$q=3+0.5r$

Step-by-step explanation:

Given the equation with two variables

$10q-5r=30$

You have to rearrange this equation so the variable $r$ is independent variable. If $r$ is independent variable, then variable $q$ must be expressed in terms of $r$ .

Add $5r$ to both sides of equation:

$10q-5r+5r=30+5r\\ \\10q=30+5r$

Divide this equation by 10:

$\dfrac{10q}{10}=\dfrac{30+5r}{10}\\ \\q=\dfrac{30}{10}+\dfrac{5r}{10}\\ \\q=3+0.5r$

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Jlenok [28]

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Step-by-step explanation:

To convert a Percentange to a Fraction we need to follow the below mentioned steps:

1) Write down the percent divided by 100 ==> percent/100

2) In case percent is not a whole number, if not then we need to multiply both top and bottom by 10 for every number that comes after the decimal point.

(For example, in case there is one number after the decimal point then we use 10, if there are two numbers then use 100 and so on )

3)Then we Simplify reduce the percentage to the fraction

For Example :Convert 25% to fraction then

1) 25% =25/100

2) Now in this case the percentage is a whole number so we go directly to step 3

3) 25/100=5/20= 1/4

25/100 is called a decimal fraction and 1/4 is called a common fraction

Now if we need to convert a Percentage into Decimal then:

Let us consider the Percentage to be 25%

The easiest way to divide by 100 is to

1)we divide the number by 100, and remove the percentage sign. ==>25/100

2)Now we move the decimal point 2 places to the left of the percentage number ==>.25

So the decimal form of the 25% is.25

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3 years ago

What is the volume of a cone with height of 2sqrt(17) and radius of 3sqrt(2)?

puteri [66]

Im about kinda sure its 18.5 you should use a calculator for this kinda stuff so you dont waste points

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3 years ago

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Tpy6a [65]

Answer:

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Step-by-step explanation:

Since we are looking for the square root of 169, we realize that 13 multiplied by itself equals 169. Negative 13 does the same, so it is the answer.

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4 years ago

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Tasya [4]

Answer:

Question 21: C.

Question 22: I.

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Step-by-step explanation:

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3 years ago