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Slav-nsk [51]
3 years ago
9

Alan estimated that he would score 140 points the next time he bowled. He actually scored 152 points.

Mathematics
1 answer:
Nadya [2.5K]3 years ago
4 0
The anwer is b because you can multiply or subraction from it 
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2 years ago
Write the given phrase as an algebraic expression. Use the variable x to represent the unknown number.
Alchen [17]
Hello! I would love to help!

Let's start with this part of the equation: "the sum of a number and seven"

Alright. We know that x represents an unknown number. Do you see a part of the equation that could translate to "an unknown number?"

I see "a number." So let's fill X in for "a number.

Alright. So now we have "the sum of x and 7."

Next, let's remember that sum means adding. So we just need to 7 to x

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Alright. Now we just have to do the "twice." When it is asking for "twice", it is asking us to multiply our answer by two. But we need to multiply both x and 7. The best way to do that is to put our "x+7" in parenthesis and put a two outside.

2(x+7)


That's your answer! 2(x+7)


Hope this helped! Comment if you have any questions!
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In a game the player wins if he rolls a 6 on a number cube.
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Step-by-step explanation:

3 0
3 years ago
What is being done to the variable in the equation y + 8.5 = 17.2?
olganol [36]
<span>The number 8.5 is being added. </span>
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