Question

Annika sells 6 inch pies for $5.00 and 8 inch pies for $9.00 each. Last week she sold twice as many 6 inch pies as she did 8 inch pies. She made $133.00 from her sales. Annika defined x as the number of 6 inch pies she sold and y as the number of 8 inch pies she sold. She wrote the system below.
6x+8y=133
2x=y

Answer 1

Answer:

Let

x---------> the number of 6-inch pies Annika sold 

y--------> the number of 8-inch pies Annika sold 

we know that

x=2y------> equation 1

5x+9y=133---> equation 2

substitute the equation 1 in equation 2

5*[2y]+9y=133

10y+9y=133

19y=133

y=7

x=2y-----> x=2*7-----> x =14