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Amanda [17]
3 years ago
9

How many ounces of a 12% alcohol solution and a 22% alcohol solution must be combined to obtain 80 ounces of a 17% solution?

Mathematics
1 answer:
Fed [463]3 years ago
4 0

Answer:

40 ounces

Step-by-step explanation:

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10-x=-2x what is it ???
aniked [119]

Answer:

x = - 10

Step-by-step explanation:

Given

10 - x = - 2x ( add 2x to both sides )

10 + x = 0 ( subtract 10 from both sides )

x = - 10

4 0
3 years ago
A printing company charges $5.00 for the first 400 pages printed. For each page printed over 400, the customer is charged an add
Vadim26 [7]

Answer:

D

Step-by-step explanation:

Up to 400 pages, the cost is fixed at 5.00 dollars

After 400 pages the cost is 0.01 cents/page

  • It's not A. 400 is the number of pages. It is not a cost.
  • It's not B either. B means that no matter how many pages you print, it's going to cost 5 dollars + the number of pages times 1 cent.
  • C is not the answer. It is really just an answer put it. You pay 1 cent for each page between 400 and what you printed.
  • I think D is the answer, but if you get a negative number, then the cost is 5 dollars
5 0
3 years ago
Marcy and her sister watched a cartoon movie that was 2 hours and 18 minutes long. after the movie, they played a card game for
Dmitry_Shevchenko [17]

Answer:

1:24pm

Step-by-step explanation:

Couple of ways to solve this. Here is one method
Convert all times to minutes and find the total number of minutes they spent on all 3 activities. Then convert to hours and minutes and subtract from the end time of 5;28 to get the start time of all activities which is also the start time of watching the movie (first activity)

So time spent:

Movie: 2 hours 18 minutes = 2 * 60 + 18 = 120 + 18 = 138 minutes
Card game: 34 minutes
Soccer: 1 hour 12 minutes = 1 * 60 + 12 = 72 minutes

Total time spent = 138 + 34 + 72 = 244 minutes = 4 hours and 04 minutes

Subtract 4:04 from 5:28 to get 1:24pm

Check
Movie watch starts at 4:04, ends at 1:24 + 2:18 or 3:42pm
Card game starts at 3:42pm ends at 3:42+0:34 ==> 4:16pm
Soccer starts at 4:16pm ends at 4:16pm + 1:12 ==> 5;28pm

7 0
2 years ago
5/ 10 of the students in Sam’s class are girls. Of the girls, 1 /5of them wear glasses. What fraction of all the students wear g
Vesnalui [34]
1/10 because one girl out of ten students wears glasses
8 0
3 years ago
Read 2 more answers
A. The actual building height will be 596 ft tall. You want your model to be 3 ft tall. What will the scale factor be? For this
Reil [10]

Answer:

mulltiply

Step-by-step explanation: you mulitply all

7 0
3 years ago
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