Each of the students at piano recital takes about 8 3/4 minutes to introduce themselves and play 3 songs. there are 9 students playing in the recital. about how long will the recital last

For this case we have that each student takes 8 \ frac {3} {4} minutes to perform and play 3 songs. Then, we convert the mixed number to a fraction:

Thus, each student takes minutes.

If there are 9 students in the recital then we have:

minutes.

Thus, the recital lasts at least 78.75 minutes.

The recital lasts at least 78.75 minutes.

answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.