Robby is considering taking out a cash advance on his credit card to purchase a new television. his credit card offers cash advances up to $500.00 at an interest rate of 28%. if the television costs $350.00 and robby plans to pay the balance of in 6 months, how much extra will he pay in interest to purchase the television? a. $29.14 b. $63.18 c. $174.48 d. $379.08 select the best answer from the choices provided

$29.14

Step-by-step explanation:

Given : His credit card offers cash advances up to $500.00 at an interest rate of 28%.

To find: If the television costs $350.00 and Robby plans to pay the balance of in 6 months, how much extra will he pay in interest to purchase the television?

Solution:

Monthly payment =

P = $350

n =6

rate of interest = 20% =0.28

So, rate of interest per month = i = 0.28/12

Substituting the values

So, he pays per month = $63.1887591933

So, he pays with interest for 6 months =

                                                                 =

The cost of television was $350

So, the amount he paid extra =  

                                                =    

Hence he pay $29.14 extra in interest to purchase television.

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

x-3y=4

step-by-step e