Barney has a balance of $780 on a credit card with an apr of 31.3%, compounded monthly. about how much will he save in interest over the course of a year if he transfers his balance to a credit card with an apr of 19.1%, compounded monthly? (assume that barney will make no payments or new purchases during the year, and ignore any possible late-payment fees.)

Barney will save about $119.66.

Step-by-step explanation:

The compound interest formula is:

A=

Case 1:

when p = 780

r = 0.313

n = 12

t = 1

Putting the values in formula:

A = dollars

Interest accured = dollars

Case 2:

when p = 780

r = 0.191

n = 12

t = 1

Putting the values in formula:

A = dollars

Interest accured = dollars

Now difference in interest in both cases = dollars

Hence, Barney will save about $119.66.

step-by-step explanation:

so first find out how much each is worth.

quarter= 25 cents

dime= 10 cents

pennies= 1 cent

then multiply each by how much each is worth.

200                     150                   300

x                         x                     x   1

  25                       10              

                                  300

1000                     1500

+                          

4000                                      

5000                                  

then count 2 from the back and add a period.

$50.00

$15.00

$3.00

and then add them

  $50.00

+

  $15.00

+

    $3.00

$68.00

so sunghee has $68.00

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assuming you mean addition: addition and subtraction are reverse operations.

step-by-step explanation: