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PilotLPTM [1.2K]
4 years ago
15

Find the sum and choose the correct answer.

Mathematics
1 answer:
hodyreva [135]4 years ago
7 0
To put it in the simplest words : 
Get rid of the parentheses and add like so: 
2n^3 - 8n^2 + 7 + n^3 + 8n - 9

<span>Combine like terms
2n^3+n^3= 3n^3
-8n^2 remains the same since there are no like terms for it
8n also remains the same
-9+7=-2
Put all of the numbers together
3n^3-8n^2+8n-2
Final answer:
B - the 2nd one</span>
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The county fair charges $1.25 per ticket for the rides. Jermaine bought 25 tickets for the rides and spent a total of $43.75 at
satela [25.4K]
The total cost is the dependant variable and the number of tickets along with flat out price is the independent variable.

The equation would be y = 1.25x + ?

You would insert 25 for x which equals 31.25 and insert 43.75 for y.

43.75 = 31.25 + ? Then subtract 31.25 from both sides of the equation and you would get....

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4 years ago
Abes apples orchard plants both green apple trees and red apple trees this planting will include 21 red apple trees and 18 green
Xelga [282]

Answer:

The ratio of green apples to red apples is .

Step-by-step explanation:

Given,

Number of red apples = 21

Number of green apples = 18

We have to find out the ratio of green apples to red apples.

Solution,

For finding the ratio we have to divide the number of green apples to the number of red apples.

So, we can frame the above sentence as;

Ratio = number of green apples/number of red apples

Now substituting the values, we get;

Ratio= 18/21 = 6/7

Hence The ratio of green apples to red apples is . 6/7

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Answer:The answer is 70$

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