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Assoli18 [71]
3 years ago
10

Half a number plus 5 is 11.What is the number?

Mathematics
1 answer:
user100 [1]3 years ago
3 0
12. if you take half of 12, 6, then you add 5, you get 11.
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The produce market is having a sale on grapes and oranges. A customer found the following two receipts in her cart as she was wa
AleksandrR [38]

Answer:

Step-by-step explanation:

From the first receipt:

2 pounds of grapes + 4 pounds of oranges = 10.70 which, in an algebraic equation, looks like this:

2g + 4o = 10.70

From the second receipt:

3 pounds of grapes + 2 pounds of oranges = 9.65 which, in an algebraic equation, looks like this:

3g + 2o = 9.65

Putting those together into a system and solving using the elimination method:

2g + 4o = 10.7

3g + 2o = 9.65

I am going to eliminate the oranges first since it's easier to do that. I will multiply the second equation by -2 to get a new system:

2g + 4o = 10.7

-6g - 4o = -19.3

As you can see, the oranges are eliminated because 4o - 4o = 0o. That leaves us with only the grapes:

-4g = -8.6 so

g = 2.15

Grapes cost $2.15 per pound. Now sub that into either one of the original equations to solve for the cost per pound of oranges:

2(2.15) + 4o = 10.7 and

4.3 + 4o = 10.7 and

4o = 6.4 so

o = 1.60

Oranges cost $1.60 per pound. That is choice D from your list.

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3 years ago
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EleoNora [17]
The answer is 85,115.
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2 years ago
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PLEASE! Is this correct?
Paladinen [302]
I believe it’s correct, but i’m not smart
6 0
3 years ago
15 16 17 18 19 Ancers please
kodGreya [7K]

15. 1hour 7minutes and 5seconds

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Is the answer number 1? I can't get anymore wrong sorry for lengthy problem thanks!
mezya [45]
The area of the circle shown would not be 5pi. If you look closer, the area is 25pi, therefore the answer is 3. I hope this helps!
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