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jok3333 [9.3K]
4 years ago
8

Simplify 9s-5s+2s-s for my work

Mathematics
2 answers:
ArbitrLikvidat [17]4 years ago
4 0

<em>The answer is 5s, Hope this helps for your work. </em>

kirza4 [7]4 years ago
3 0

Lets say that 's' stands for 'sandwich'. It could be any noun you want that starts with the letter 's'.

9s represents having 9 sandwiches

5s means you have 5 sandwiches

and so on

Saying 9s-5s means you start with 9 sandwiches and take away 5 of them. So, 9s - 5s = (9-5)s = 4s. We're left with 4 sandwiches.

Then add on 2 more

9s - 5s + 2s = 4s + 2s = (4+2)s = 6s

We now have 6 sandwiches

Finally, take away 1 sandwich. The last "-s" in your given expression is the same as "-1s"

So,

9s - 5s + 2s - s = 9s - 5s + 2s - 1s

9s - 5s + 2s - s = 6s - 1s

9s - 5s + 2s - s = (6 - 1)s

9s - 5s + 2s - s = 5s

or you could write your work like this

9s - 5s + 2s - s = 9s - 5s + 2s - 1s

9s - 5s + 2s - s = (9 - 5 + 2 - 1)s

9s - 5s + 2s - s = 5s

Either way, the given expression simplifies to 5s. In the end, we have 5 sandwiches.

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There are 10 blocks in a row (section). There are  6 rows (sections).

1.

A. If each block has a value of one, what is the value for a section of blocks?

<h2> 10</h2>

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B. What is the total value of all the blocks, write an equation?

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There are 6 sections. There are 10 blocks in a section. 60 * 10 * 10 = 600

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