All categories

3 years ago

monique needs 2.75 cups of sugar for a pie recipe.she wants to make 5 pies. how many cups of sugar will she need?

Mathematics

2 answers:

zhuklara [117]3 years ago

5 0

2.75 x 5 = 13.75

she will need 13.75 cups of sugar

soldi70 [24.7K]3 years ago

3 0

1 pie = 2.75 cups
5 pie = 13.75 cups

i am a mathematics teacher. if anything to ask please pm me

You might be interested in

Based on data from a college, scores on a certain test are normally distributed with a mean of 1530 and a standard deviation of

harkovskaia [24]

Answer:

0.73% of the scores are greater than 2317.

14.46% of the scores are less than 1190.

38.23% of the scores are between 1351 and 1673.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 1530, \sigma = 322$

Find the percentage of scores greater than 2317.

This is 1 subtracted by the pvalue of Z when X = 2317. So:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{2317 - 1530}{322}$

$Z = 2.44$

$Z = 2.44$ has a pvalue of 0.9927.

So 1-0.9927 = 0.0073 = 0.73% of the scores are greater than 2317.

Find the percentage of scores less than 1190.

This is the pvalue of Z when X = 1190. So:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{1190 - 1530}{322}$

$Z = -1.06$

$Z = -1.06$ has a pvalue of 0.1446.

So 14.46% of the scores are less than 1190.

Find the percentage of scores between 1351 and 1673.

This is the pvalue of Z when X = 1673 subtracted by the pvalue of Z when X = 1351. So

X = 1673

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{1673- 1530}{322}$

$Z = 0.44$

$Z = 0.44$ has a pvalue of 0.67

X = 1351

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{1351- 1530}{322}$

$Z = -0.56$

$Z = -0.56$ has a pvalue of 0.2877

So 0.67-0.2877 = 0.3823 = 38.23% of the scores are between 1351 and 1673.

4 0

3 years ago

The lengths of the sides of a rectangle are 18cm by 3m. Express the area of the rectangle in square decametres.

lubasha [3.4K]

For this case we have that by definition, the area of a rectangle is given by:

$A = b * h$

Where:

b: It is the base of the rectangle

h: It is the height of the rectangle

By definition we have to:

1 meter equals 0.1 decameters

1 centimeter equals 0.001 decameters

According to the data of the statement we have:

$b = 18 \ cm * \frac {0.001} {1} * \frac {decametres.} {cm} = 0.018 \ decameters.\\h = 3m * \frac {0.1} {1} * \frac {decameters} {m} = 0.3 \ decameters.$