MATHEMATICS HIGH SCHOOL

In January 2012, the U.S. Population was about 313 million people. In January 2017, it was about 324 million. What was the average rate of population change per year?

Answers

Answer 1

Answer:

The average rate of population change per year will be 2.2 million.

The difference in population will be:

= 324 million - 313 million.

= 11 million

The difference in years will be:

= 2017 - 2012

= 5 years.

The average rate of population change per year will be:

= 11 million / 5

= 2.2 million

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Answer 2

Answer:

Answer: 2.2 million.

Step-by-step explanation:

To get the answer, you would need to make 324 million and 2017 a fraction(324 million as numerator (top), 2017 as denominator (bottom) and the same for 313 million and 2012) . From there, you subtract both fractions. You will get 11/5, which would equal 2 1/5. Multiply the 2 1/5 by 2 to get 2 20/100.

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Answers

$\frac { 2.4 }{ m } =\frac { 3 }{ 4.5 } \n \n \frac { 4.5 }{ 3 } \cdot m\cdot \frac { 2.4 }{ m } =\frac { 3 }{ 4.5 } \cdot m\cdot \frac { 4.5 }{ 3 } \n \n m=\frac { \left( 4.5 \right) \left( 2.4 \right) }{ 3 } \n \n m=\frac { \left( 4+\frac { 1 }{ 2 } \right) \left( 2+\frac { 2 }{ 5 } \right) }{ 3 }$

$\n \n m=\frac { 8+\frac { 8 }{ 5 } +1+\frac { 2 }{ 10 } }{ 3 } \n \n m=\frac { 9+\frac { 16 }{ 10 } +\frac { 2 }{ 10 } }{ 3 } \n \n m=\frac { \frac { 90 }{ 10 } +\frac { 18 }{ 10 } }{ 3 }$

$\n \n m=\frac { \frac { 108 }{ 10 } }{ 3 } \n \n m=\frac { 108 }{ 10 } \cdot \frac { 1 }{ 3 } \n \n m=\frac { 108 }{ 30 } \n \n m=\frac { 3\cdot 36 }{ 3\cdot 10 } \n \n m=\frac { 36 }{ 10 } \n \n m=3.6$

Mrs. Pierce conducted a survey in her class on the ages of famous people. The table shows the results of the survey. Please help

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Answers

Answer:

It might be b i have no clue so dont exactly trust my awnser.

Step-by-step explanation:

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Parker is planning for a school picnic. He would like to have 2 hot dogs per person and 15 extra on hand. How many hot dogs does he need if there are 116 students and 8 teachers?