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vampirchik [111]
3 years ago
8

The value of m is equal to three times n divided by the difference of 4p and 5n. which of the equations below is equivalent to t

he equation described above?
Mathematics
1 answer:
matrenka [14]3 years ago
4 0
M = (3n) / (4p - 5n) <== ur equation
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Answer:

1. Cooking time saved in a month = 42.86 * 3/4 = 32 hours

2. Cooking time saved in a year = 520 * 3/4 = 390 hours

3. Since the household saves 390 hours in a year using pressure cooker, it will then save 390 * $2 = $780

Step-by-step explanation:

Hours spent cooking on average per week = 10 hours

Hours spend cooking on average per day = 1.43 (10/7), assuming 7 days in a week

Total hours spent on average per month = 42.86 (30 * 10/7), assuming 30 days in a month

Total hours spent on average per year = 520 (52 * 10) hours, assuming 52 weeks in a year.

Savings in time = 3/4

Therefore, the cooking time saved in a month = 42.86 * 3/4 = 32 hours

And the cooking time saved in a year = 520 * 3/4 = 390 hours

If on the average, a household spends $20 in natural gas for cooking per month, the money it would save by using a pressure cooker in a year will be equal to:

Cost of each hour of cooking without pressure cooker = $20/10 = $2 per hour

Since the household saves 390 hours in a year using pressure cooker, it will then save

= Hours saved multiplied by hourly cost of gas

= 390 * $2

= $780

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3 years ago
This is a question I am needing help with
Solnce55 [7]

Answer:

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13. Nathan completed 60% of the passes he attempted during the last football season. If he attempted 90 passes, how many did he
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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