Question

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Answer 1

Answer: (A) If the number of cups of cereal is 40, then the number of cups of raisins will be 10.

Step-by-step explanation:

From the given table , we can check the given quantities are in proportion .

Since , $\frac{x}{y}=\frac{8}{2}=\frac{12}{3}=\frac{16}{4}=4\\\Rightarrow\ x=4y$

So this case is of direct proportion, where the number of cereal cups is 4 times the cups of raisins.

It is said that A point is plotted on the ordered pair 40,20.

But $\frac{40}{20}=2\neq4$

Hence, Molly is incorrect.

Since , $x=4y\\\Rightarrow\ y=\frac{x}{4}=\frac{40}{4}=10$

Because, if the number of cereals is 40, then the number of raisins should  be 10 such that,

$\frac{40}{10}=4$