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pav-90 [236]
3 years ago
14

Debra purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Debra used her card on

ly once to make a long
distance call. If the remaining credit on her card is $22.48, how many minutes did her call last?
Mathematics
1 answer:
miv72 [106K]3 years ago
7 0

The answer is 47 minutes.

You basically imagine this: Debra has a phone card for $30. She used x minutes every 16 cents. You end up with $22.48.

30 - (0.16x) = 22.48

You can basically graph that equation and the x-intercept will show you your answer. x = 47

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On Tuesday, Karen finished all her chores in 3/4 of an hour. On Wednesday, she finished her chores in 5/12 of an hour. How much
IRISSAK [1]
1 hour = 60 minutes

Tuesday: 60 divided by 4 = 15. Karen did it 3/4 of a hour so we multiply 15 by 4 which is 45. 45 equals 45 minutes. On Tuesday, Karen finished her chores in 45 minutes

Wednesday: first we divide 60 by 12 which is 5. 5 would equal 5 minutes. now we multiply 5 by 5 which is 25. Karen finished her chores in 25 minutes.

Answer: Karen finished her chores 20 minutes faster on Wednesday than Tuesday.

Hope this helps!
3 0
2 years ago
To rent a certain meeting room, a college charges a reservation fee of $ 46 and an additional fee of $ 6.40 per hour. The chemis
lisabon 2012 [21]

Answer:

Up to 5 hours

Step-by-step explanation:

<u>Given:</u>

  • One off fee = $46
  • Hourly rent = $6.4 / hr
  • Amount limitation= $78

<u>Equation to reflect the condition:</u>

  • 78 = 46 + 6.4t
  • 6.4t = 78 - 46
  • 6.4t = 32
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So, the meeting room can be rented for up to 5 hours with $78

8 0
2 years ago
How many square inches are in 60 square feet
Dahasolnce [82]

Answer:8640

Step-by-step explanation: 60 square feet would be 8640.

3 0
2 years ago
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A mail order company charges 4.5% for shipping and handling. If the total order is 54.34 how much was the order total before shi
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Answer:

$52

Step-by-step explanation:

Given that :

Amount charged for shipping and handling = 4.5%

Let cost of order = x

Total amount charged = 54.34

However,

total. Amount charged = (total cost + handling and shipping)

54.34 = x + 0.045x

54.34 = 1.045x

Order total before shipping = 54.34 / 1.045

Order total before shipping = 52

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Shara collected two different data sets and label them dataset S and data said T.
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Answer:

What are you asking?

Step-by-step explanation:

4 0
3 years ago
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