Baking - Word Story Problem

Question

Rebecca wants to bake cookies and cupcakes for a bake sale. She can bake 15 cookies and 12 cupcakes at a time. She needs to make at least 120 backed goods, but no more than 360, and she wants to have at least three times as many cookies as cupcakes. What combination of batches of each could Rebecca make?

Answer 1

c=/>3cc

120</= c+CC</= 360

120<4cc<360

30<CC< 90

15 c at a time

12 CC at a time

2</= c </=4

she should bake 2, 3 or 4 batches of cookies and 0 batches of cupcakes