Question

Bert baked 18 cookies with 3 scoops of flour. With 7 scoops of flour, how many cookies can Bert bake? Solve using unit rates.

Answer 1

Bert can bake 18 cookies using 3 scoops of flour, giving us the ratio of 18 cookies to 3 scoops of flour. Dividing this ratio by 3 gives us 6 cookies : 1 scoop of flour. Multiplying this ratio by 7 gives us 21 cookies to 7 scoops of flour. So, the answer is 21 cookies.

Answer 2

Bert can bake 42 cookies with 7 scoops of flour by calculating the unit rate of cookies per scoop of flour which is found to be 6 cookies per scoop.

Step-by-step explanation:

We are asked to find out how many cookies Bert can bake with 7 scoops of flour given that he can bake 18 cookies with 3 scoops of flour. This is a problem that involves setting up a proportion using unit rates. To solve this problem, first, we determine the unit rate of cookies per scoop of flour.

With 3 scoops, Bert bakes 18 cookies. So, the unit rate is:

\(\frac{18 \text{ cookies}}{3 \text{ scoops of flour}} = 6 \text{ cookies per scoop}\)

Now, with this unit rate, we can find out how many cookies can be baked with 7 scoops:

\(7 \text{ scoops} \times 6 \text{ cookies/scoop} = 42 \text{ cookies}\)

Bert can bake 42 cookies with 7 scoops of flour using the unit rate we calculated.