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morpeh [17]
3 years ago
11

An artist agrees to paint a landscape painting at $0.30 per square inch. If the painting is 13 inches by 17 inches, how much sho

uld the artist charge?
Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
5 0

area of painting = 13 * 17 = 221 square inches

221 * 0.30 = 66.30

 the price would be $66.30

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A grocery sells green apples and red apples. On Monday, the store put 500 of each kind of apple on display. That day, the store
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342 red apples

Step-by-step explanation:

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What percentage of babies born in the United States are classified as having a low birthweight (&lt;2500g)? explain how you got
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Answer:

2.28% of babies born in the United States having a low birth weight.

Step-by-step explanation:

<u>The complete question is</u>: In the United States, birth weights of newborn babies are approximately normally distributed with a mean of μ = 3,500 g and a standard deviation of σ = 500 g. What percent of babies born in the United States are classified as having a low birth weight (< 2,500 g)? Explain how you got your answer.

We are given that in the United States, birth weights of newborn babies are approximately normally distributed with a mean of μ = 3,500 g and a standard deviation of σ = 500 g.

Let X = <u><em>birth weights of newborn babies</em></u>

The z-score probability distribution for the normal distribution is given by;

                          Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = population mean = 3,500 g

            \sigma = standard deviation = 500 g

So, X ~ N(\mu=3500, \sigma^{2} = 500)

Now, the percent of babies born in the United States having a low birth weight is given by = P(X < 2500 mg)

         

   P(X < 2500 mg) = P( \frac{X-\mu}{\sigma} < \frac{2500-3500}{500} ) = P(Z < -2) = 1 - P(Z \leq 2)

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The above probability is calculated by looking at the value of x = 2 in the z table which has an area of 0.97725.

4 0
3 years ago
It costs $12 to get into the San Diego County Fair and $1.50 per ride.
yan [13]

Answer:

8

Step-by-step explanation:

(24-12)/1.50=8

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3 years ago
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