Answer:
<em><u>1) Sam's Club is better because the price for 10 cans at the village market would be $6.20 versus $4.70 from Sam's Club</u></em>
<em><u>2) 420 people with 210 per hour</u></em>
<em><u>3) It would be more beneficial to buy apples from the Quick Market considering the explanation below.</u></em>
<em><u>4) 396 quarts per hour and a daily rate of 792.</u></em>
Step-by-step explanation:
1) $3.10 x 2 = $6.20
2) 70 x 6 = 420
so, 210 per hour
3) $1.05 divided by 3 is $0.35 per apple at the Quick Market
$2.55 divided by 5 is $0.51 per apple at the Stop and Save.
4) take 330 and divide by 10 to get the amount per hour which is 33 quarts per hour.
330 + 33 + 33 = 396 for 12 hours
396 x 2 = 792 for one day.
Answer:
Step-by-step explanation:
For this case we can calculate the sample variance and deviation with the following table
Class Midpoint (Xi) fi Xi*fi Xi^2 *fi
120.6-123.6 122.1 17 2075.7 253443
123.7-126.7 125.2 49 6134.8 768077
126.8-129.8 128.3 29 3720.7 477365.8
129.9-132.9 131.4 41 5387.4 707904.4
133.0-136.0 134.5 35 4007.5 633158.8
___________________________________________
Total 171 22026.1 2839948.85
For this case we can calculate the mean or expected value with the following formula:
Now we can calculate the sample variance with the following formula:
![s^2 =\frac{\sum f_i X^2_i -[\frac{(\sum X_i f_i)}{n}]^2}{n-1}](https://tex.z-dn.net/?f=s%5E2%20%3D%5Cfrac%7B%5Csum%20f_i%20X%5E2_i%20-%5B%5Cfrac%7B%28%5Csum%20X_i%20f_i%29%7D%7Bn%7D%5D%5E2%7D%7Bn-1%7D)
And if we replace we got:
And the standard deviation would be the square root of the variance and we got:
So basically it sounds like it wants you to make the denominators match.
Here's an example:
3/4 and 1/2
First you would find the Least Common Multiple (LCM), which of these two numbers is 4.
3/4 and 2/4 Then you would multiply the denominator the same amount you multiplied the denominator.
and voila! 3/4 and 2/4 have matching denominators
Please ask questions if you are still confused!
They would be traveling at 47.5 mph
