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sergey [27]
3 years ago
5

A store has two different brands of laundry detergent. Brand A can do 105 loads of laundry and costs $21.99. Brand B does 80 loa

ds of laundry and costs $17.99. Which laundry detergent is the better buy and what is that detergent's unit price?
Answers:
A. Brand A $0.20
B. Brand A $0.21
C. Brand B $0.22
D. Brand B $0.23​
Mathematics
2 answers:
ycow [4]3 years ago
6 0
B. Brand A 0.21 is the better buy
coldgirl [10]3 years ago
3 0

Answer:

B. Brand A $0.21

Step-by-step explanation:

                                    (round to nearest cent)

Brand A: 21.99/105 = .2094 = .21 ( .2094 rounds to .21)

Brand B: 17.99/80 = .2248 = .22    ( .2248 rounds to .22)

Therefore Brand A is a better buy for $0.21 per load

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Answer:

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Step-by-step explanation:

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Answer:

x = 27

Step-by-step explanation:

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2 years ago
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hjlf
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Differentiate f and find the domain of f. (enter the domain in interval notation.)f(x) = ln(x2 − 12x)derivative f '(x) = 2x−12x2
guajiro [1.7K]
F(x) = ln(x² - 12x)
The derivative is
f'(x)= \frac{2x-12}{x^{2}-12x}

f(x) is undefined when x² - 12x = x(x - 12) = 0
That is, when x = 0 or x = 12.
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Answer:
The derivative is
f'(x) =  \frac{2x-12}{x^{2}-12x}
The domain is
(-∞, 0)∪(0, 12)∪(12,∞)



3 0
3 years ago
Which of the following equations are equivalent to-2m-5m-8 #-(-7) + m?D-15m-4md:7m-8-rn-4□-3m-8-4-m□m-4.7m-8-8.7m- 4-m□-8.3m-4-m
Readme [11.4K]
-2m - 5m - 8 = 3 + (-7) + m
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m - 4 = -7m - 8 <=== another one
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