###### Exercise36

A country’s national debt was $$100$$ million dollars in 2010. The debt increased at $$20$$ million dollars per year. If this trend continues, when will the country’s national debt increase to $$480$$ million dollars?

Assume the country’s national debt will become $$480$$ million dollars $$y$$ years after 2010. We can solve this problem using the equation:

$$\displaystyle{20 y+100=480}\text{.}$$

Check whether $$17$$ is a solution for $$y$$ of this equation. (This solution implies the country’s national debt will become $$480$$ million dollars in the year 2027.)

?

Yes

No

in-context