Sam ran at 6km/h for 2h 20min what distance did he run

1 answer:

4 0

2 hours 20 minutes is the same has 2.33 (two and a third hours) which is the same as 7/3 hours. So if he is traveling at 6km/hour and travels 7/3 hours the answers is 6x7/3=14km

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Korey is planning to open a comic book store. He has developed the following expense breakdown for set-up and operation for the

pentagon [3]

The total amount of cash money that Korey have is the summation of his savings and his inheritance which is equal to Korey cash = $8500 + $25,000.
To identify the amount needed to be funded by loans or investors, we need to know first the total of expenses plus set-up plus operation expenses and other expenses to operate the bookstore subtracted by his savings.

Thus, let "AL" be the amount needed through loans while letting "TE" for total expenses.

AL=TE-($8500+$25000)
AL=TE-$33,500

This is the equation needed to determine the amount needed.

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2 years ago

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While remodeling her kitchen Angela is repainting. She estimates that she paints 55 square feet every half-hour. How many square

madreJ [45]

110 square feet. 55x2=100

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2 years ago

A simple random sample (SRS) of 100 of a certain popular car in 1997 found that 20 had a certain minor defect in the brakes. An

densk [106]

Answer: The required interval is (0.679, 0.821).

Step-by-step explanation:

Since we have given that

$n_1=100\\\\p_1=20\\\\n_2=400\\\\p_2=50$

So, the proportions would be

$\hat{p_1}=\dfrac{p_1}{n_1}=\dfrac{20}{100}=0.2\\\\\hat{p_2}=\dfrac{p_2}{n_2}=\dfrac{50}{400}=0.125$

So, At 90% confidence interval, the z score value would be

z = 1.65

and the hypothesis are :

$H_0:\hat{p_1}-\hat{p_2}=0\\\\H_1:\hat{p_1}-\hat{p_2}\neq 0$

So, the 90% confidence interval would be

$(\hat{p_1}-\hat{p_2})\pm z\sqrt{\dfrac{\hat{p_1}(1-\hat{p_1}}{n_1}+\dfrac{\hat{p_2}(1-\hat{p_2})}{n_2}}\\\\=(0.2-0.125)\pm 1.65\sqrt{\dfrac{0.2\times 0.8}{100}+\dfrac{0.125\times 0.875}{400}}\\\\=0.075\pm 1.65\times 0.0433\\\\=(0.75-0.0714,0.75+0.0714)\\\\=(0.679,0.821)$

Hence, the required interval is (0.679, 0.821).

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2 years ago

N+6m evaluate the expression when m=5 n=8

mixer [17]

The first equation would be 5+6(8).
The next step is to multiply the 6 and the 8, making it 48.
The final step is to add 5 and 48, making your answer 53.

Hope this helps.

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2 years ago

List the potential solutions to 2 ln x = 4 ln 2 from least to greatest.

svp [43]

We have to find the potential solutions to $2 ln x = 4 ln 2$ from least to greatest.