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Art [367]
3 years ago
13

4(5m+3x)+2x write an equivalent expression.

Mathematics
2 answers:
zloy xaker [14]3 years ago
3 0

Answer:

20+14x

Step-by-step explanation:

Anastasy [175]3 years ago
3 0

Answer:

20m+14x

Step-by-step explanation:

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3 years ago
Find the sum of the first one hundred positive integers. see fig 6.26
nignag [31]
Here's a pattern to consider:
1+100=101
2+99=101
3+98=101
4+97=101
5+96=101
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This question relates to the discovery of Gauss, a mathematician. He found out that if you split 100 from 1-50 and 51-100, you could add them from each end to get a sum of 101. As there are 50 sets of addition, then the total is 50×101=5050
So, the sum of the first 100 positive integers is 5050.

Quick note
We can use a formula to find out the sum of an arithmetic series:
s =  \frac{n(n + 1)}{2}
Where s is the sum of the series and n is the number of terms in the series. It works for the above problem.
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3 years ago
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3 years ago
7.2g of sugar is needed for every cake made. How much sugar is needed for 9 cakes?
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What is the answer please 2(4 + 2z) =
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Answer: It would be 8+4z  because you can't add a variable.

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Read 2 more answers
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