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3 years ago

Emily is adding 51 and 29 which steps can she use to add the numbers

Mathematics

1 answer:

frutty [35]3 years ago

7 0

Answer:

51 + 29+ 80

Step-by-step explanation:

she got this by adding 51 + 29

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Need by tomorrow please help

nikklg [1K]

1 - 9
2 -28
3 54
4 -100
5 -60
6 0
7 49
8 -135
9 -96
10 300
11 0
12 192

6 0

3 years ago

Read 2 more answers

A survey of 80 randomly selected companies asked them to report the annual income of their presidents. Assuming that incomes are

Artyom0805 [142]

Answer:

The 90% confidence interval estimate of the mean annual income of all company presidents is ($579,545, $590,580).

Step-by-step explanation:

The information provided is:

$n=80\\\sigma=30,000\\\bar x=585062.50\\\text{Confidence level} = 90\%$

The critical value of z for 90% confidence level is, 1.645.

Compute the 90% confidence interval estimate of the mean annual income of all company presidents as follows:

$CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\\\\=585062.50\pm 1.645\times\frac{30000}{\sqrt{80}}\\\\=585062.50\pm5517.50\\\\=(579545, 590580)$

Thus, the 90% confidence interval estimate of the mean annual income of all company presidents is ($579,545, $590,580).

This interval implies that there is 90% probability that the true mean annual income of all company presidents is within this interval.

4 0

2 years ago

Please help someone anyone please help

Brrunno [24]

Answer:

if 135 calories represents 1/4 then a whole cup is 540 calories so two cups is 540 times 2 which is 1080

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Can you solve this: JUST number 7 and 8 Thanks everyone

kaheart [24]

For number 7 because 9 is the number of small triangle and 99 is for the bigger one so you can say 9 * 11 = 99 so 10 * 11 = 110 = x
and for number 8 because the small triangle has the same sides so the bigger one should have too so x = 100 :)))
hope this is helpful
have a nice day

6 0

3 years ago

Colin invests £2200 into his bank account. He receives 2.5% per year simple interest. How much will Colin have after 3 years? Gi

Helga [31]

Answer:

Colin will have $2365 after 3 years.

Step-by-step explanation:

Using PRT/100, we can find the interest and then sum it up with the principle amount.

=> 2200 x 2.5 x 3/100 = Interest
=> 22 x 2.5 x 3 = Interest
=> 55 x 3 = Interest
=> 165 = Interest
=> 2200 + 165 = Total amount
=> $2365

Hence, Colin will have $2365 after 3 years.

Hoped this helped.

$BrainiacUser1357$

5 0

2 years ago