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sashaice [31]
2 years ago
7

Solve this by Substituton

Mathematics
1 answer:
lana66690 [7]2 years ago
4 0
There is no solution for this equation
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Help. Look at image. I don't get this.
Nadusha1986 [10]

Answer:

she spent 91.18 dollrs

Step-by-step explanation:

simply add the blouse shoes and shirt prices,

times .20, subtract frmo total

6 0
3 years ago
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If the life in years of a television set is normally distributed with a mean of 36 years and a standard deviation of 8 years wha
TiliK225 [7]

Answer:

The company should guarantee a lifetime of less than equal to 20.95 years so that less than 3% of the television sets fail while under warranty.    

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 36 years

Standard Deviation, σ = 8 years

We are given that the distribution of life of television sets is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of x such that the probability is 0.03.

P( X < x) = P( z < \displaystyle\frac{x - 36}{8})=0.03  

Calculation the value from standard normal z table, we have,  

\displaystyle\frac{x - 36}{8} =-1.881\\\\x = 20.952\approx 20.95  

Thus, the company should guarantee a lifetime of less than or equal to 20.95 years so that less than 3% of the television sets fail while under warranty.

3 0
2 years ago
The regular price of a space invader game is 52, but its on sale. the discount is $13 What percent discount is this?
Mashutka [201]
25% off is the answer
5 0
3 years ago
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What 2 numbers are factors of 18?
WITCHER [35]

Factors are the numbers you multiply together to get given number.

All possible factorizations of number 18 by two factors are:

  1. 18=1·18;
  2. 18=2·9;
  3. 18=3·6.

Answer: 1 and 18, 2 and 9, 3 and 6.

4 0
2 years ago
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What is the equation of the line that passes through the point (-4, -6) and has a<br> slope of -1/2?
Vikentia [17]

Answer:

y=(-1/2)x-8

Step-by-step explanation:

3 0
3 years ago
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