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givi [52]
2 years ago
11

Americans who are 65 years of age or older make up 12.9% of the total population. If there at 30.3 million american in this age

group, find the total u.s. population
Mathematics
1 answer:
telo118 [61]2 years ago
5 0

Total population of US is 234.88 million.

Step-by-step explanation:

Given,

Number of people are 65 or older = 30.3 million

This represents 12.9% of total population.

Let,

x represent the total population.

12.9% of x = 30.3 million

\frac{12.9}{100}x=30.3\ million\\0.129x=30.3\ million

Dividing both sides by 0.129x

\frac{0.129x}{0.129}=\frac{30.3}{0.129}\ million\\\\x=234.88\ million

Total population of US is 234.88 million.

Keywords: percentage, division

Learn more about percentage at:

  • brainly.com/question/12148432
  • brainly.com/question/12223460

#LearnwithBrainly

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olga2289 [7]
The answer is definitely 2.4>3x
7 0
3 years ago
The school that Mary goes to is selling tickets to a spring musical. On the first day of ticket sales
andrezito [222]

Answer:

The cost of one adult ticket is $13, and the price of one student ticket is $4.

Step-by-step explanation:

This question can be solved using a system of equations.

I am going to say that:

x is the cost of an adult ticket

y is the cost of a student ticket.

6 adult tickets and 1 student ticket for a total of $82

This means that

6x + y = 82

y = 82 - 6x

The school took in $51 on the second day by selling 3 adult tickets and 3 student tickets.

This means that

3x + 3y = 51

Simplifying by 3

x + y = 17

Since y = 82 - 6x

x + 82 - 6x = 17

-5x = -65

5x = 65

x = \frac{65}{5} = 13

y = 82 - 6x = 82 - 6*13 = 82-78 = 4

The cost of one adult ticket is $13, and the price of one student ticket is $4.

4 0
3 years ago
function expressed by formula y=-0.5x is there a value of x for which y=-150 if there is such value then solve it
vekshin1

Answer:

3000

Step-by-step explanation:

y=-.05x

y=-150

x*.05=150

150/.05=3000

7 0
2 years ago
Read 2 more answers
New York City is approximately 205 miles from Washington, D.C. How far apart will these cities appear on a map with the scale 1
gavmur [86]

Answer: 4.1 inches

Step-by-step explanation:

From the question, we are informed that New York City is approximately 205 miles from Washington, D.C.

The distance that these cities will appear on a map with the scale 1 in: 50 miles will be represented by x.

Therefore, x:205 = 1:50

Cross multiply

x/205 = 1/50

50x = 205

x = 205/50

x = 4.1 inches

The answer is 4.1 inches

4 0
3 years ago
Toni can carry up to 11 lb in her backpack. Her lunch weighs 1 lb, her gym clothes weigh 2 lb, and her books (b) weigh 2 lb each
yuradex [85]
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4 books is the answer
3 0
3 years ago
Read 2 more answers
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