Question

Brianna's chocolate chip cookie recipe will make about 3 dozen chocolate chip cookies the recipe calls for 2 1/4 cups of flour and 3/8 cup of baking soda and Brianna wants to adjust the recipe to include 1 Cup of baking soda how many cups of flour would she needs to use

Answer 1

Answer:

6 cups is the answer.

Step-by-step explanation:

The recipe for chocolate chip cookie calls for 2 1/4 cups(9/4) of flour and 3/8 cup of baking soda.

Number of cups of flour Brianna will need to use is given by:

$\frac{2\frac{1}{4}}{\frac{3}{8} }$

Solving this we get;

=> $\frac{\frac{9}{4}}{\frac{3}{8} }$

=> $\frac{9}{4}\times \frac{8}{3}$

= 6

Hence, the answer is 6 cups.

Answer 2

Write and solve an equation of ratios to answer this.

2.25 cup              x
-------------- = -------------
0.375 cup          1 cup
                                                                                  2.25
cross-multiplying, 2.25 = 0.375x.  Solving for x, x = ---------- = 6
                                                                                   0.375

Brianna would need to use 6 cups of flour if she wants the mixture to contain 1 cup of baking soda.