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:

unpaid balance is : $149.99-$50 = $99.99 new balance = 149.99+2.62-50 = $102.61 finance charge = 99.99- 0.21/12= $1.75 new balance = 99.99+1.75 = $101.74 average daily balance method average daily balance= 3399.70/30 = $113.32 finance charge = $ 0.21/12ă—113.32 = $1.98 new balance = $149.99-50+1.98 = $101.97

a

step-by-step explanation:

u take $30 minus $24. the answer/original($30)