Help help help A math is hard

F.) $404.17

Explanation: To solve this, first you'd need to subtract the payments people will be making towards the cost. Since the grandparents will be paying half, you need to divide the $19,700 ÷ 2. The quotient of this is $9,850. Because $9,850 is half of the total cost, we are now left with the other $9,850. Luckily, the student's athletic scholarship will be subtracting $5,000 from the total. And so, after subtracting $9,850 - $5,000, we get a difference of $4850. $4850 is the amount that the student pays over the course of 12 months. To calculate how much she needs to save every month, we will divide 4850 ÷ 12 and receive a quotient of 404.17. Therefore, the student will need to save $404.17 every month in order to pay off the remaining costs at the end of the 12 months.

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step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)