The US national debt was 2.9617×10^13 in 2021 and 3.98×10 to the 11th power in 1971 find how much the debt increased in the 50 year. Period.
To find the increase in the national debt over a 50-year period, we need to subtract the initial debt in 1971 from the debt in 2021.
Debt in 2021 = 2.9617×10^13
Debt in 1971 = 3.98×10^11
Increase in debt = Debt in 2021 - Debt in 1971
= 2.9617×10^13 - 3.98×10^11
To subtract the two numbers written in scientific notation, we must have the same exponent. Let's convert the debt in 1971 to scientific notation with 13 as the exponent.
3.98×10^11 = 3.98×10^(11+2) = 3.98×10^13
Now we can calculate the increase in debt:
Increase in debt = 2.9617×10^13 - 3.98×10^13
= (2.9617 - 3.98) × 10^13
= -1.0183 × 10^13
Therefore, the national debt in the US decreased by approximately $1.0183 × 10^13 over the 50-year period.
To find the increase in the US national debt over a 50-year period, subtract the debt in 1971 from the debt in 2021.
Debt in 2021: 2.9617 × 10^13
Debt in 1971: 3.98 × 10^11
Increase in debt = Debt in 2021 - Debt in 1971
= (2.9617 × 10^13) - (3.98 × 10^11)
Now, we need to align the exponents before subtracting:
2.9617 × 10^13 = 29.617 × 10^12
3.98 × 10^11 = 398 × 10^9
Now, subtract the debt values:
29.617 × 10^12 - 398 × 10^9
To subtract, we need to have the same exponent. We can convert 398 × 10^9 to 3.98 × 10^11:
29.617 × 10^12 - 3.98 × 10^11
= 29.617 × 10^12 - 0.398 × (10^12 × 10^2)
= 29.617 × 10^12 - 0.398 × 10^14
Now, we can subtract the values:
29.617 × 10^12 - 0.398 × 10^14 = 29.617 × 10^12 - 398 × 10^12
= (29.617 - 398) × 10^12
= -368.383 × 10^12
Thus, the increase in the US national debt over the 50-year period is approximately -368.383 × 10^12.
To find the increase in the US national debt over a 50-year period, you need to subtract the debt in 1971 from the debt in 2021. Let's break down the calculation.
Debt in 1971: 3.98 × 10^11
Debt in 2021: 2.9617 × 10^13
To perform the subtraction, we need to ensure that both numbers have the same exponent. Let's convert the debt in 1971 to scientific notation with the same exponent as in 2021:
3.98 × 10^11 = 0.398 × 10^12
Now we can subtract:
Debt increase = (2.9617 × 10^13) - (0.398 × 10^12)
We subtract the coefficients and keep the exponent the same:
2.9617 - 0.398 = 2.5637
Therefore, the increase in the US national debt over the 50-year period is approximately 2.5637 × 10^13.