Write equations as sentence. 12x+9=33

Mathematics

2 answers:

exis [7]4 years ago

7 0

12 times a number plus 9 equals 33

ad-work [718]4 years ago

3 0

Answer:

12 and a number plus nine equals thirty- three

Step-by-step explanation:

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20 is what percent of 50?

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We can rephrase the question as "What percent of 50 is 20?".
"What percent ..." is an unknown. We'll use the variable x to represent this unknown.

The word 'of' in mathematics can mean 'multiply'. Likewise the word 'is' can mean 'equal'.

Now we have the phrase "20 equals to x times 50".

Or in an equation: 20 = x * 50

Solve for x.

20 = x * 50
$\frac{20}{50}$ = x <-- Divide both sides by 50

Simplify the fraction.

$\frac{20}{50} = \frac{2}{5}$

Convert the fraction into a decimal.

$\frac{2}{5}$ = 0.4

Convert the decimal into a percent.

0.4 = 40%

So, 40% is the answer.

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Which ordered pair is a solution of the equation?

gogolik [260]

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In 40 minutes the both 2 trains will arrive

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Find the slope of the graph of the function y=5x/x-2 at (3,15). Then find an equation for the line tangent to the graph at that

bagirrra123 [75]

The first derivative gives you the formula for the slope of the tangent line to the curve at a given point.

<span>Find the first derivative of the function y=5x/x-2:

(x-2)(5) - (5x)(1)
dy/dx = ------------------------
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simplify the algebra here.

(3-2)(5) - (15)(1)
Then, at the point (3,15), dy/dx = -------------------------- = -10
(3-2)^2

What is the equation of the tangent line? In other words, what is the eqn of the tan line to the given curve at when x = 3, if the slope is -10?

y-15 = -10(x-3)

This can be re-written in other forms if desired.

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Write equations as sentence. 12x+9=33​

Write equations as sentence. 12x+9=33