The median age of the U.S. population in 1980 was 30.0 years. In 1991, the median age was 33.1 years.

Mathematics

1 answer:

ioda3 years ago

8 0

Answer:

a. Life span increased

b. The median age could rise because of the improvement in medical technology. Also more advertisement of healthier life styles, such as eating healthy could have increase the median age.

c. No because this just shows the increase in life span not the decrease in children.

Step-by-step explanation:

a. more people on average lived longer lives. (explanation)

b. self explanatory I guess, my answer pretty much explained it.

c. life span of US citizens does not effect the children population. I guess you could say people lived longer lives to have more children, so possibly the number of children could have increased.

You might be interested in

An air plane travels at a constant speed of 575 miles per hour. Write and equation that can be used to detrmine the number of mi

cluponka [151]

miles divided by hours and there is your answer

6 0

3 years ago

Luke subtracted 128° from 180° and found that the measurement of ∠STR is 52°. How can Luke use this information to find the meas

Karolina [17]

STR is a triangle as shown in the picture. If Luke decided to subtract 128º from 180º, that's because he understood that the sum of the internal angles in a triangle is 180º, and therefore the angles RST and TRS together make 128º.
As a result, RST will be
128º - TRS
where TRS is the angle at R, as shown in the picture