Respuesta :

Answer:

1 cup of milk Juan should use.

Step-by-step explanation:

Given:

A recipe calls for 120 ml of milk for each 200 g of flour.

Juan is going to use 1 pound of flour.

Now, to estimate the number of cups of milk.

Let the quantity of milk be [tex]x.[/tex]

Now, to convert the pound of flour to gram.

1 pound = 453.59 g.

So, Juan is going to use 453.59 g of flour.

As, given recipe calls for 120 ml of milk for each 200 g of flour.

So, 120 ml is equivalent to 200 g.

Thus, [tex]x[/tex] is equivalent to 453.59 g.

Now, to solve by using cross multiplication method:

[tex]\frac{120}{200} =\frac{x}{453.59}[/tex]

By cross multiplying we get:

[tex]54430.8=200x[/tex]

Dividing both sides by 200 we get:

[tex]272.154=x[/tex]

[tex]x=272.154[/tex]

The quantity of milk = 272.154 ml.

Now, converting the quantity into cups by conversion factor:

1 ml = 0.004 cup.

So, 272.154 ml of milk is:

272.154 × 0.004

=1.088 cups.

Estimating the number = 1 cup.

Therefore, 1 cup of milk Juan should use.