Write a word problem that can be solved by using 2×5÷5

2 answers:

3 0

Sally bought 2 pizzas cut into 5 slices. She wanted to divide it between her and her 4 friends. How many slices do each friend get?
2(5)=10
10÷5=5

maria [59]3 years ago

3 0

A candy bar costs 5 dollars. you want 2 of them so you multiply using the expression: 2(5)=10. You have 4 friends so you decided to divide the candy bar in 5ths so that you and the 4 friends can have the same amount: 2(5)divided by 5=5.

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Not sure, please help!

Blizzard [7]

Divide the number of actual pages by 2.

52/2 = 26

She will need 26 sheets of paper.

Hope this helps!

3 0

3 years ago

Human body temperatures have a mean of 98.20° F and a standard deviation of 0.62° F. Sally's temperature can be described by z =

irina1246 [14]

Answer:

Sally's temperature is 97.27 °F.

Step-by-step explanation:

All the information given in the question tells us that the human body temperatures are normally distributed with a population's mean = 98.20°F and a standard deviation = 0.62°F.

The question gives us Sally's temperature in a z-score. We have to remember that the standard normal distribution is a particular case of a normal distribution where the mean = 0 and the standard deviation = 1.

Using the standard normal distribution, we can determine every probability associated with a normal distribution "transforming" the raw scores, coming from normally distributed data, into z-scores.

A z-score gives us the distance from the population's mean and is in standard deviation units. So, a z = 1.5 tells us that the value is 1.5 standard deviations above the mean. Conversely, a z = -1.5 tells us that the raw score is also 1.5 standard deviation from the mean, but in the opposite direction, that is, below the mean.

The formula for a z-score is as follows:

$\\ z = \frac{x - \mu}{\sigma}$ (1)