Question

4 cups of peanut butter are needed to make 80 peanut butter cookies meiling wants to make 400 cookies .how many cups of peanut butter does she need?​

Answer 1

Meiling needs 20 cups of peanut butter

Given :

• 4 cups of peanut butter are needed to make 80 peanut butter cookies

• Meiling wants to make 400 cookies

To find :

The number of cups of peanut butter Meiling needs

Solution :

Step 1 of 2 :

Form the equation to calculate number of cups of peanut butter

Let Meiling needs x cups of peanut butter

Since number of cups of peanut butter is direct proportion to the number of peanut butter cookies

So we have

$\displaystyle \sf 4 : 80 = x : 400$

Step 2 of 2 :

Calculate the number of cups of peanut butter

$\displaystyle \sf 4 : 80 = x : 400$

$\displaystyle \sf{ \implies } \frac{4}{80} = \frac{x}{400}$

$\displaystyle \sf{ \implies }80x = 4 \times 400$

$\displaystyle \sf{ \implies }x = \frac{4 \times 400}{80}$

$\displaystyle \sf{ \implies }x = 20$

Hence Meiling needs 20 cups of peanut butter

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Answer 2

Answer:

20 cups of peanut butter does she need.

Step-by-step explanation:

4 cups of peanut butter are needed to make 80 peanut butter cookies meiling wants to make 400 cookies .

4 cups of peanut butter

80 peanut butter cookies

400 cookies

find how many cups of peanut butter does she need.

• Any number of equal parts is represented by a fraction, which also represents a portion of a whole. A fraction, such as one-half, eight-fifths, or three-quarters, indicates how many components of a particular size there are when stated in ordinary English.

Formulate based on the criteria stated:

400 * 4 / 80

Diminish the fraction:

5 * 4 = 20

Determine the quotient or product:

20

obtain the outcome:

20

20 cups of peanut butter does she need.

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