Question

1. you have sold 12 of your muffins at a bake sale. that was 3/10 of all the muffins you made. how many muffins were there total? a. 20 b. 30 c. 40 d. 50

Explanation:

Step1: Define the variable

Let \( x \) be the total number of muffins.

Step2: Set up the equation

We know that \( \frac{3}{10} \) of \( x \) is 12, so the equation is \( \frac{3}{10}x = 12 \).

Step3: Solve for \( x \)

Multiply both sides of the equation by \( \frac{10}{3} \) to isolate \( x \). So \( x = 12\times\frac{10}{3} \).
Calculate \( 12\times\frac{10}{3} \): \( 12\div3 = 4 \), then \( 4\times10 = 40 \). So \( x = 40 \).

Answer:

C. 40