Question

Lara is baking cupcakes for the bake sale. She needs at least 96 cupcakes and no more than 120 cupcakes. Her baking pan holds 12 cupcakes. If she already baked 12 cupcakes, how many more pans of cupcakes does she need to bake?

She needs to bake 7< x < 9 more pans of cupcakes.

She needs to bake 9 < x < 11 more pans of cupcakes.

She needs to bake 8 < x < 10 more pans of cupcakes.

She needs to bake 10 < x < 12 more pans of cupcakes.

Answer 1

Let x be the number of additional pans. Total cupcakes = 12 + 12x, and 96 ≤ 12 + 12x ≤ 120. Divide by 12: 8 ≤ 1 + x ≤ 10, so 7 ≤ x ≤ 9. Thus she needs to bake 7, 8, or 9 more pans. (Closest choice: the first one.)