3 years ago

How do you calculate a country's public debt?

Mathematics

1 answer:

Bas_tet [7]3 years ago

4 0

It depend on how much debt

You might be interested in

Which of the following expresses the possible number of positive real solutions for the polynomial equation shown below?

AleksandrR [38]

6x^2-7x+28 is the correct answer:)

6 0

3 years ago

Read 2 more answers

A farmer in China discovers a mammal hide that contains 37% of its original amount of C-14. Find the age of the mammal hide to t

Naya [18.7K]

Answer: 54678 years

Step-by-step explanation:

This can be solved by the following equation:

$N_{t}=N_{o}e^{-\lambda t}$ (1)

Where:

$N_{t}=54\%=0.54$ is the quantity of atoms of carbon-14 left after time $t$

$N_{o}=1$ is the initial quantity of atoms of C-14 in the mammal hide

$\lambda$ is the rate constant for carbon-14 radioactive decay

$t$ is the time elapsed

On the other hand, $\lambda$ has a relation with the half life $h$ of the C-14, which is $5730 years$ :

$\lambda=\frac{ln(2)}{h}=\frac{ln(2)}{5730 years}=1.21(10)^{-4} years^{-1}=0.000121 years^{-1}$ (2)

Substituting (2) in (1):

$0.54=1e^{-(0.000121 years^{-1}) t}$ (3)

Applying natural logarithm on both sides of the equation:

$ln(0.54)=ln(1e^{-(0.000121 years^{-1}) t})$ (4)

$-0.616=-(0.000121 years^{-1}) t$ (5)

Isolating $t$ :

$t=\frac{-0.616}{-0.000121 years^{-1}}$ (6)

$t=54677.68 years \approx 54678 years$ (7) This is the age of the mammal hide

8 0

3 years ago

1.) Using appropriate properties find. -2/3×3/5+5/2-3/5×1/6

frez [133]

Answer:

Step-by-step explanation:

Multiply then add

4 0

3 years ago

A full-time employee who works 40 hours per week earns $22.50 per hour. Estimate that person's income. Round 52 weeks to 50 week

Shkiper50 [21]

23*40=920
920*50= 46,000

4 0

3 years ago

Read 2 more answers

. A patio is built in the shape of a trapezoid, as shown. Determine the area of the patio.

netineya [11]

Answer:

84 in²

Step-by-step explanation:

(15+6)0.5 * 8 = 21(0.5) * 8 = 10.5 * 8 = 84

8 0

3 years ago