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LiRa [457]
3 years ago
10

Give a numerical example that shows these are not the same expressions. 2(n+5) and 2n+5

Mathematics
2 answers:
Nana76 [90]3 years ago
8 0

Answer: Any number that isn’t 1, 2, -1, or -2 I believe.

Step-by-step explanation: In the first expression, you have to distribute the 2, making it equal to 2n + 10, whereas the first is just 2n + 5.

For example if you were to plug the number 3 into this, you would have 2(3+5), which is 2(8) = 16. Versus the other side, 2(3)+5 = 11

Papessa [141]3 years ago
7 0

Answer:

The two are different expressions because when you distibute, you multiply all terms inside the parenthesis with the 2 in the first one: 2(n+5) = 2n + 10.

2n + 10 ≠ 2n + 5.

Step-by-step explanation:

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IRISSAK [1]

Answer:

f(g)=25g

Step-by-step explanation:

Let g be the number of gallons so f(g) is the number of miles traveled per g gallons.

We know for our problem that Brian's car gets 25 miles per gallon. Since the gallons is represented by g, his car will travel a total distance of 25g (where g is the number of gallons.

We also know that the total distance is given by f(g), so we can put the two expressions together to get our function:

f(g)=25g

Let's check:

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- If he uses 2 gallons (g=2), so

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3 years ago
A $40 jacket has 6% sales tax. What is the final cost?
xxTIMURxx [149]

Answer:

42.40 is your answer for this equation

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3 years ago
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A wall in Marcus's bedroom is 8 1/3 feet high and 16 1/5 feet long. If he paints 1/3 of the wall blue, how many square feet will
Flura [38]
<span><u><em>Answer:</em></u>
45 ft</span>²<span> will be blue

<u><em>Explanation:</em></u>
<u>1- getting the area of the wall:</u>
area of the rectangle can be calculated as follows:
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we are given that:
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Now, substituting in the above rule, we can get the area as follows:
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<u>2- getting the area that would be pained blue:</u>
We are given that </span>\frac{1}{3}<span> of the area of the room would be painted blue, this means that:

area of blue = </span>\frac{1}{3}<span> * area of room

area of blue = </span>\frac{1}{3}<span> * 135

area of room = 45 ft</span>²<span>

Hope this helps :)</span>
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3 years ago
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Answer:

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