Question

A recipe that makes 8 jumbo blueberry muffins calls for 1 1/2 teaspoons of baking powder how much making baking powder is needed to make 3 dozen jumbo muffins

Answer 1

we know that

For make $8$ jumbo blueberry muffins is needed $1\frac{1}{2}$ teaspoons of baking powder

$1\frac{1}{2}=1.5$

So

by proportion

$\frac{8}{1.5} =\frac{36}{x} \\ \\ 8x=36*1.5\\ \\ x=\frac{36*1.5}{8} \\ \\ x=6.75$

$x=6\frac{3}{4}$ teaspoons of baking powder

therefore

the answer is

$6\frac{3}{4}$ teaspoons of baking powder

Answer 2

A dozen is 12 jumbo muffins, so 3 dozen is 36 muffins.

We know how much sugar is needed for 8 muffins, and 36 divided by 8 is equal to 4. So we need four times the previous amount.

1.5 tsp x 4 = 6 teaspoons.