The U.S. national debt was $2.9617×10^13 in 2021 and $3.98×10^11 in 1971. Find how much the debt increased in the 50-year period. (1 point)
Responses
$2.9219×1011
2.9219 dollars times 10 superscript 11 baseline
$2.9219×1013
2.9219 dollars times 10 superscript 13 baseline
$1.0183×1024
1.0183 dollars times 10 superscript 24 baseline
$3.0015×1013
To find the increase in the national debt over the 50-year period, we need to subtract the debt in 1971 from the debt in 2021.
Debt increase = Debt in 2021 - Debt in 1971
Debt increase = 2.9617×10^13 - 3.98×10^11
To subtract these numbers, we need to make sure they are written in scientific notation with the same exponent.
2.9617×10^13 = 29.617×10^12
3.98×10^11 = 0.398×10^12
Debt increase = (29.617×10^12) - (0.398×10^12)
Debt increase = 29.219×10^12
Therefore, the increase in the national debt over the 50-year period is $2.9219×10^13.
To find how much the U.S. national debt increased in the 50-year period, we need to calculate the difference between the debt in 2021 and the debt in 1971.
The U.S. national debt in 2021 was $2.9617×10^13 (2.9617 dollars times 10^13).
The U.S. national debt in 1971 was $3.98×10^11 (3.98 dollars times 10^11).
To calculate the increase, we subtract the debt in 1971 from the debt in 2021:
($2.9617×10^13) - ($3.98×10^11) = $2.9219×10^13 or 2.9219 dollars times 10^13.
Therefore, the U.S. national debt increased by $2.9219×10^13 or 2.9219 dollars times 10^13 in the 50-year period.
To find out how much the debt increased in the 50-year period from 1971 to 2021, we need to subtract the debt in 1971 from the debt in 2021.
The debt in 2021 is given as $2.9617×10^13, and the debt in 1971 is given as $3.98×10^11.
To subtract these two values, we do the following:
$2.9617×10^13 - $3.98×10^11
When subtracting numbers in scientific notation, it's important to make sure the exponents (the superscripts) are the same. In this case, we need to adjust the exponent of $3.98×10^11 to match the exponent of $2.9617×10^13, which is 13.
To do this, we need to move the decimal point in $3.98×10^11 two places to the right:
$3.98×10^11 = $398×10^9 = $3.98×10^11
Now, we can subtract the two numbers with matching exponents:
$2.9617×10^13 - $3.98×10^11 = ($2.9617 - $3.98) ×10^13
After subtracting the numbers outside of the scientific notation, we can combine it with the common exponent:
($2.9617 - $3.98) ×10^13 = $(-1.0183) ×10^13
So the debt increased by $1.0183×10^13 in the 50-year period.