Question

10. 10. The original cost of an Acura SUV was $28,000. After a few years the SUV is worth $21,000. What is the ratio of the decrease to the original cost? Math 11. Begin Chapter 6 (Percents): 11. Frankie's cost for medical insurance increased from $160 per month to $200 per month. Find the percent increase in the medical insurance premium. Math

Answer 1

10)Original cost is $28000 and the new cost is $21000. The decrease in cost will be the difference between these two, that is

Ratio of decrease to original cost = will be the ratio

11)

The increase in cost will be the difference of the new cost and the original cost. The new cost is $200, and the original cost is $160.

The percentage increase will be given by the formula

Hence, 25% is the % increase in medical premiums

19)
Simple Interest is given by the formula

$SimpleInterest=Principal*Rate*TimePeriod$

Here, the principal is $6000, the rate is 9% per year, which can be written as 0.09, and the time period is 2(years)

Simple Interest, will therefore be

$SimpleInterest=6000*0.09*2=1080dollars$

Total amount to be repaid will be the sum of simple interest and Principal, that is

20)

Jayne's salary last year was $52000. A 3% increase in that will be

$3\%*52000=0.03*52000=1560$ dollar increase in salary

Also, the total salary will be