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Jlenok [28]
3 years ago
10

On monday, deborah ran 3 2/5 miles and on tuesday she ran 4 1/5 miles how many miles did she run on these 2 days togehter

Mathematics
1 answer:
Iteru [2.4K]3 years ago
8 0
Convert the two fractions into simpler fractions: 3 2/5 --> 17/5 and 4 1/5 --> 21/5. Notice the the denominators are identical, so we simply add the numerators: (17 + 21)/5 = 38/5 = 7 3/5. 

There is an easier way to do this, this is just the most clear way of seeing everything. 
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The answer is 5(x squared-3x)
It is distributive property
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What is: <br> 5+5(5-5•5)-5 = ?
Alik [6]

Answer:

-100

Step-by-step explanation:

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A bag contains four chips of different​ colors, including​ red, blue,​ green, and yellow. A chip is selected at random from the
masha68 [24]

Answer:

Check Explanation please.

Probability = 0.25.

Step-by-step explanation:

The Important thing to note here is that we have sixteen(16) different possible outcomes for this particular problem or question.

From the question above, we are given the following information or data: ''bag contains four chips of different​ colors, including​ red, blue,​ green, and yellow. A chip is selected at random from the bag and then replaced in the bag. A second chip is then selected at random"

Hence, the sixteen (16) different possible outcomes are; RR, RB, BB, BR, RG, GR, GG, RY, YR, YY, BG, GB, BY, YB, GY, YG.

To calculate the probability we need to used the numbers of f different colors divided by the number big possible outcomes, that is; 4/16 = 0.25.

3 0
4 years ago
Why is 20 to 40 a 100% increase
Oksi-84 [34.3K]

increasing 20 to 40 is the same as increasing 20 by 20 (or itself), so it is a 100% increase. Decreasing 40 to 20 is the same as decreasing 40 by 1/2 or by 20. So it is a 50% increase.

when going from 20 to 40, the number is being doubled, and when youre going from 40 to 20 you are cutting the number in half. 

hope this helped:)

8 0
3 years ago
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