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ivolga24 [154]
2 years ago
6

Ending time is 10:08 am. Elapsed time 30 min

Mathematics
1 answer:
BabaBlast [244]2 years ago
4 0
10:38 am ...........
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Which expression correctly represents twice of the sum of four and a number
tino4ka555 [31]

Let "a number" be represented with the variable x.

Solve the expression by breaking it apart:

"...the sum of four and a number": (x + 4)

"twice of...": 2(

"Twice of the sum of four and a number": 2(x + 4)

2(x + 4) is your answer.

~

5 0
3 years ago
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Describe a way to check the correctness of a subtraction answer.
Tamiku [17]

Step-by-step explanation:

Well in general, we can represent subtraction as: x-y=z

"z" represents the difference, and it really just represents x with y taken away. So if we were to "give back" this y value, we should get "x".

This means that: z+y=x

So one way to check, is adding the value that's being subtracted (y value) and the difference (z value), this should get you the value that is being subtracted from (x value). If you don't get the original value that's being subtracted from (x-value) then you know the answer you got is wrong.

3 0
1 year ago
Rewrite using the distributive property 6(x + 3)
alekssr [168]

Answer: 6x+18

Step-by-step explanation: Because of the Distributive property, you would multiply the 6 by the’x’ and 3, as they are in the parenthesis.

4 0
3 years ago
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How would i do this problem?
CaHeK987 [17]

Answer:

a=22 hope it helps:))

5 0
3 years ago
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How do you simplify the expression (s+t)3
bonufazy [111]

Answer:

3s + 3t

Step-by-step explanation:

To simplify this expression, all you need to do is distribute the 3, which means you basically multiply whatever is in the parentheses by 3:

(s + t) * 3 =

3s + 3t

And that is the simplified form for this expression.

Hope this helps :)

6 0
2 years ago
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