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Ne4ueva [31]
3 years ago
8

X/8 - 9 = 1 Solve for x

Mathematics
1 answer:
mestny [16]3 years ago
7 0

Answer:

x=80

Step-by-step explanation:

  • x/8-9=1
  • x/8=9+1
  • x/8=10
  • x=80

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In a certain year, the price of gasoline rose by 20% during January, fell by 20% during February, rose by 25% in March, and fell
satela [25.4K]

Using decimal multipliers, it is found that the value of x is of 16.67.

<h3>What is a decimal multiplier?</h3>

Increases of a% or decreases of a% re represented by decimal values, as follows:

  • The equivalent multiplier for an increase of a% is given by: \frac{100 + a}{100}
  • The equivalent multiplier for an decrease of a% is given by: \frac{100 - a}{100}

In this problem:

  • The price at the beginning of January was of a.
  • Increase of 20% in January, hence 1.2a.
  • Decrease of 20% in February, hence 1.2(0.8)a.
  • Increase of 25% in March, hence 1.2(0.8)(1.25)a.
  • Decrease of x% in April, hence 1.2(0.8)(1.25)\left(\frac{100 - x}{100}\right)a

The price of gasoline at the end of April was the same as it had been at the beginning of January, hence:

a =1.2(0.8)(1.25)\left(\frac{100 - x}{100}\right)a

1.2\left(\frac{100 - x}{100}\right) = 1

\left(\frac{100 - x}{100}\right) = \frac{1}{1.2}

\frac{100 - x}{100} = 0.8333

100 - x = 83.33

x = 16.67

The value of x is of 16.67.

To learn more about decimal multipliers, you can take a look at brainly.com/question/24952336

6 0
2 years ago
What will happen to the measures of central tendency if the outlier is removed
frosja888 [35]
It decreases the number of data by one.
7 0
1 year ago
What Is the value of 3^3 +7(2x-6) when x=4
Airida [17]

Answer:

18? i don't think it's right but i tried mental math

Step-by-step explanation:

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2 years ago
According to the graph, what is the value of the constant in the equation below?
Virty [35]

According to the graph, the value of the constant in the equation below is 80 and is denoted as option D.

What is a Graph?

This is defined as a pictorial representation of data or variables in an organized manner.

From the equation:  Height = constant/width

We can pick any point(4,20) on the graph.

20 = c/ 4

c = 20 × 4 = 80

Read more about Graph here brainly.com/question/19040584

#SPJ1

6 0
2 years ago
Hello Please help me.
olga55 [171]

Answer:

Step-by-step explanation:

1) D

2) B

3) no solution

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