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3 years ago

BRAINLIEST!!PLS HELP!

Mathematics

2 answers:

tangare [24]3 years ago

7 0

Your answer would be 70

10 divided by 3=3.33
3.33 times 21= 70

seraphim [82]3 years ago

4 0

The answer you are looking for is 70.

There are a couple ways to find this. You could...

A. Since the question states "21 units on the first 3 floors" you could multiply 21 and 10 to get 210 (number of units if there were 21 on each floor), then divide it by 3 to find the total number in the building. Dividing by 3 compensates for the 21 units on the first 3 floors. Or...

B. Divide 21 by 3 to find how many units are on each floor (7), then multiply by the number of floors in the building (10). Either way, both ways will give you 70.

I hope this helps!

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Will give brainliest! please answer!

Montano1993 [528]

Answer:

Step-by-step explanation:

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933+ c <=1500

3 0

3 years ago

Read 2 more answers

A recent survey indicated that the average amount spent for breakfast by business managers was $9.33 with a standard deviation o

olasank [31]

Answer:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Replacing the info given we got:

$t=\frac{9.41-9.33}{\frac{0.24}{\sqrt{81}}}=3$

Step-by-step explanation:

Information given

$\bar X=9.41$ represent the sample mean

$s=0.24$ represent the sample standard deviation

$n=81$ sample size

$\mu_o =9.33$ represent the value to verify

$\alpha=0.05$ represent the significance level

t would represent the statistic

$p_v$ represent the p value

Hypothesis to test

We want to test if the true mean is higher than 9.33, the system of hypothesis would be:

Null hypothesis: $\mu \leq 9.33$

Alternative hypothesis: $\mu > 9.33$

The statistic is given by:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Replacing the info given we got:

$t=\frac{9.41-9.33}{\frac{0.24}{\sqrt{81}}}=3$

4 0

3 years ago

Evaluate 4 - 6 + 9 - 3

omeli [17]

$4 - 6 + 9 - 3$

$= 4$

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3 years ago

Jason is buying fruit at the grocery store to make a fruit salad for his company party. For the fruit salad he needs the ingredi

tekilochka [14]

Answer:

82.8 for the strawberries

2.49 for the bannanna

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35.76 for the oranges

The total is 165.85

Step-by-step explanation:

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3 years ago