Math problem please help A student bake sale is selling baked goods. In total they sell 100 pieces of baking, Chocolate chip cookies sell for $0.50 and Muffins for $1.25. The total money earned from the bake sale came to 68.75. How many muffins did they sell?

The number of muffins sold by the students is:

Step-by-step explanation:

First, we name the variables:

Now we establish the equations with the information given in the exercise:

We can use in this case the reduction method, to this, we multiply the first equation by (-0.5) obtaining the equation 3:

    3. -0.5C - 0.5M = -50

We operate the equations 2 and 3 to eliminate the variable C:

And we solve for the variable M:

We could stop here because we know the number of muffins now, but with the value for M, we can solve the value of C with the first equation to check the answer is correct:

In the end, we replace the values in the second equation and verify if the answer is correct:

24+x=y

step-by-step explanation: