Student purchased 7 binders for a total of $8.61. Write an equation that can be used to find the cost of each binder, n, in dollars. What is the cost, in dollars, Of each binder?

Answers:

The equation is 7n = 8.61

The cost of each binder is $1.23

Work Shown:

n = cost of one binder in dollars

7n = cost of 7 binders in dollars

7n = 8.61  is the equation

7n/7 = 8.61/7 ... divide both sides by 7

n = 1.23 is the cost of each binder

7n = 8.61

n = 1.23

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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