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Darya [45]
3 years ago
13

A bulk store sells 200 diapers from Brand (a) for $38.75 and it says 170 diapers from Brand (b) for $35.50. If both brands have

the same quality which is the better deal ?
Mathematics
1 answer:
Mazyrski [523]3 years ago
5 0

Answer:

Brand A costs less per diaper

Step-by-step explanation:

To determine if it is the better deal, we need the cost per diaper.  To find the Cost per diaper, take the total cost and divide by the number of diapers

Brand A

Cost per diaper = $38.75/ 200 = $.19375  per diaper

Brand B

Cost per diaper = $35.50/170 =.208823529 per diaper


Brand A costs less per diaper

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College calculus. I've tried it a couple times but i can't seem to get the right answer
boyakko [2]
The area is the sum of 'n' rectangle areas.
The width of the rectangle is size of interval, (domain size)/n
The height of each rectangle is f(interval) as interval moves along domain.

For this example, domain size = 3-1 = 2
size of interval = 2/n
height varies from f(1) to f(3), increasing by 2/n each time.
f(1+(2/n)i)

Putting this together, the area is the sum of:
\frac{2}{n}*f(1+\frac{2i}{n})

Since you are given the function f(x). Sub input into f(x) to get area in terms of n and i.

f(1+\frac{2i}{n}) = \frac{3(1+\frac{2i}{n})}{(1+\frac{2i}{n})^2 +8} \\  \\ =\frac{3n+6i}{n}*\frac{n^2}{(n+2i)^2 +8n^2} \\  \\ =\frac{3n^2 +6ni}{9n^2+4ni+4i^2}

Finally, the summation is:
\frac{2}{n}*\frac{3n^2 +6ni}{9n^2+4ni+4i^2} = \frac{6n +12i}{9n^2+4ni+4i^2} \\  \\  A =\lim_{n \to \infty} \sum_{i=1}^n \frac{6n +12i}{9n^2+4ni+4i^2}
7 0
3 years ago
The side-by-side stemplot below displays the arm spans, in centimeters, for two classes.
Yanka [14]

Answer:

a. The arm spans for Class A have more variability than the arm spans for Class B.

Step-by-step explanation:

The stemplot for the Arm span is given for Class A and Class B. The variability of Class A are higher than variability of Class B. The arm spans of Class A have values greater than Class B. The mean of Class A is greater than Class B.

8 0
3 years ago
Leo Corporation pays its employees on a graduated commission scale: 6 percent on 1st $40,000 sales; 7% on sales above $40,000 to
kaheart [24]
So according to the question statements 

6% of the $40k and 7$ of the second $40k and 9% ammount of the $80k 

the answer would be 

40000 * 0.06
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+  25000 * 0.09
= 270250


7 0
3 years ago
Simplify each of the following using the laws of exponents. Assume that no divisor is zero.
podryga [215]

1. (4s)³ = 64s³

2. (-s²t)³ = −s⁶t³

3. 4^-3 = 1/64

4. a^-⁷ b^-⁸ = 1/a⁷b⁸

5.(-3x)² (-xy)² = 9x⁴y²

7 0
2 years ago
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DedPeter [7]
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8 0
3 years ago
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