Y + 7x=50
14x - 5y = -28
one solution
no solution
Infinite solutions

Your answer is in the screenshot! :)

Step-by-step explanation:

1. Solve for yy in y+7x=50y+7x=50. y=50-7x

y=50−7x

2. Substitute y=50-7xy=50−7x into 14x-5y=-2814x−5y=−28. 49x-250=-28

49x−250=−28

3. Solve for xx in 49x-250=-2849x−250=−28. x=\frac{222}{49}

x= 49 222

4. Substitute x=\frac{222}{49}x= 49 222 into y=50-7xy=50−7x.

y=\frac{128}{7} y= 7 128

5. Therefore, \begin{aligned}&x=\frac{222}{49}\\&y=\frac{128}{7}\end{aligned} x= 49 222 y= 7 128 Hope this helped!! :))

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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