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zavuch27 [327]
3 years ago
12

9n+21−3n−24 simplify

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
6 0
Alright First you combine the like terms. 
9n - 3n = 6n 
21 - 24 = -3 

Rewrite the simplified equation
6n - 3 = 0

Solve for n 
6n = 3 
n = 3/6 
n = 1/2 

Ask if you need more help! :)

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A. If she buys a pair of jeans for $102.25 and two shirts that each cost $44.27
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$481.54

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Claire is building a dollhouse where 11 inch on the plans is equivalent to 55 inches on the actual dollhouse. ​ Scale Factor ​If
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Answer:

1 : 5 ;

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Step-by-step explanation:

Given that:

11 inch on plan = 55 in actual

The scale factor here is :

11 : 55

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3 0
2 years ago
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24 dived by 7=what is the remainder
motikmotik
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3 years ago
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In 2000, the total population of the U.S. was 281.4 million people. In 2010, it was 308.7 million people. What is the average ra
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Answer:

2.73 million people per year

Step-by-step explanation:

Turn sentences into coordinates/points:

In 2000, 281.4 million people

  • (x₁, y₁) = (2000, 281.4)

In 2010, 308.7 million people

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Rate of population per year:

\sf \dfrac{y_2 - y_1}{x_2- x_1} \ \  where \ (x_1 , \ y_1), ( x_2 , \ y_2) \ are \ points

\rightarrow \sf \dfrac{308.7-281.4}{2010-2000}

\rightarrow \sf 2.73 \ million \ people

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2 years ago
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