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Rainbow [258]
3 years ago
12

Solve each equation for x )

Mathematics
1 answer:
steposvetlana [31]3 years ago
8 0

Answer:

x=-0.006667

Step-by-step explanation:

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250 decreased by 35%
Sedbober [7]

Answer:250, percentage decreased by 35% (percent) of its value = 162.5

8 0
2 years ago
The population of a town increased by 10% per year in 2009, 2010, and 2011. If the population of the town at the beginning of 20
Bogdan [553]
If the population was 40,000 at the beginning of 2009, at the end of 2009 it has increased by 10% and became 44,000.

By the same way, at the end of 2010, it became 44000 + \frac{44000*10}{100} = 48400

At the end of 2011, the population was 48400 +  \frac{48400 * 10}{100} = 53240 
4 0
3 years ago
How long will it take Birr 500
notka56 [123]

It would take 25 years for Birr 500 to quadruple if invested at a rate of 12% simple interest per annum.

<h3 /><h3>Simple interest formula</h3>

Using the simple interest formula A = P(1 + rt) where

  • P = princial amount = Birr 500,
  • A = final amount = 4P (since it is quadrupled),
  • r = rate = 12% = 12/100 = 0.12 and
  • t = time to quadruple
<h3 /><h3>Finding the time it takes to quadruple </h3>

Since we require t, making t subject of the formula, we have

t = [(A/P) - 1]/r

Substituting the values of the variables into the equation, we have

t = [(A/P) - 1]/r

t = [(4P/P) - 1]/0.12

t = [4 - 1]/0.12

t = 3/0.12

t = 25 years

So, it would take 25 years for Birr 500 to quadruple if invested at a rate of 12% simple interest per annum.

Learn more about simple interest here:

brainly.com/question/25793394

4 0
3 years ago
the nutrition facts label from a 12 oz can of soft drink is shown below. Note that a serving of the soft drink is defined as 8 o
Nataliya [291]

The correct answer is C. 65

Explanation:

The serving size of the soft drink is 8oz, besides this, the amount of sugar for this serving size according to the label is 26 grames. Now, to calculate the amount of sugar in 20oz, one of the simplest methods is to use a rule of three, because three values are known, and one is missing. The process is shown below:

1. Write the known values and use x to represent the unknown values

8 oz  =  26 grames of sugar      

20 oz  =  x

2. Use cross multiplication (this means multiply 8 x 6) and divide it into the remaining value

x = \frac{26 x 20}{ 8}   or  x = 26 x 20 / 8

3. Solve the equation

x =\frac{520}{8}      or x = 520 / 8

x = 65

4 0
3 years ago
chad has 22 coins in his pocket, all of which are dimes and quarters. if the total value of his change is 460 cents, how many di
Alenkinab [10]

Answer: delete this plz

Step-by-step explanation:

6 0
3 years ago
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