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soldi70 [24.7K]
3 years ago
7

When is estimation and affective way to determine an answer

Mathematics
1 answer:
Readme [11.4K]3 years ago
5 0
With pi, repeating decimals, etc. Hope this helped!
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Notebooks cost a $1.20 each this week and they will be on sale for $0.80 what percentage is the sale
ozzi

We can use algebra.

So, what rate time 1.20 = .80


Let x = the rate (in a decimal form)

1.20x = .80

x = .6666666666

Now, we need to multiply by 100 to get a percentage.

66.66 The price is 66% of the regular price.


They marked it off

33.33%

6 0
4 years ago
Read 2 more answers
What is 20% of 50?
vova2212 [387]

Answer:

C.) percent= 20%, Amount=unknown, Base =50

Step-by-step explanation:

The percent is the percent, so 20% is the percent.

The number you take the percent of is the base. The base is 50.

Once you calculate the percent of the base, you get the amount.

We are given the percent, 20%, the base, 50, but not the amount.

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3 years ago
If Julio read 80 pages in 2 hours, how many pages per hour did he read?
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Answer:

40

Step-by-step explanation:

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juin [17]
Yes, they are equivalent. they are because they both simplify to be 5x-10. the second expression is the first expression slightly simplified.
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3 years ago
A recipe calls for 3/5 cup of flour for every 1/2 cups of water. How many cups of water are needed for each cup of flour?
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I believe the answer to your question is you need 5/6 cup of water for every cup of flour.

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