Answer:
y = 650·0.922^t
Step-by-step explanation:
At the end of each year, 92.2% of the amount at the beginning of the year remains. That is, the beginning amount is multiplied by 0.922. The exponent t in 0.922^t tells how many times (years) that multiplication has taken place. At the end of t years, the amount remaining in milligrams (y) is ...
y = 650·0.922^t
50 tens is equal to 500 because if you multiply a number by 10, you just add a 0 behind it.
4 hundreds is literally just 400.
So 500 x 400 = 200,000
40 * 10 = 400
5 * 100 = 500
400 x 500 = 200,000
so both sides are equal to 200,000 and therefore the equation is true.
Because you’re paying interest first so the faster you pay off the interest the faster you get to the principal and pay the actual debt off
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