tusNazAT8halonettan tusNazAT8halonettan

18-06-2016
Mathematics

contestada

If a credit card has a balance of $120 for 10 days, a balance of $150 for the next 12 days and a balance of $90 for 8 days, what is the average daily balance for that 30 day period?

Respuesta :

mathmate mathmate

19-06-2016

Average balance=total number of dollar-days / total number of days

Total number of dollar days
= 120*10+150*12+90*8
=1200+1800+720
=3720 dollar-days

Total number of days
= 10 + 12 + 8
=30 days

Average daily balance
= Dollar-Days / Days
= 3720 dollar days / 30 days
= 124 dollars

Answer Link

Otras preguntas

How did the Roaring Twenties set the stage for the Great Depression?

HELP FAST!!! In ancient Rome it was believed that in order to get into heaven you had to ___. a: Go through the Roman catholic church b: Read the entire Bible c

How many terms are in this expression? 9x3+1+z

the average high of every fifth member of the football team was 5’11 what is the population

Review this map of the population density in 1400, 50 years after the plague epidemic ended. List three countries the population density declined.

Hello, help me please)

A key element in musical rhythm is the absence of O color o opinion o movement o sound

WILL GIVE BRAINLIEST If an element is in period 6, what is the highest possible number of electrons that can be in that atom?

What is the approximate distance between Bolan Pass and Khyber Pass 500 miles 500 kilometers 1,000 kilometers 750 miles

4x + 90 find the value of x