if she needs 12 eggs how much flour she need

Question

paul bought 10 identical pais of shoes for a total of $780 not including tax. how much would he pay for 15 pairs  of shoes?

 

zancas is baking cookies. if the recipe calls for 1 egg for 1.75 cups of flours. if she has 12 egg how many cups of flour would she needs?

 

Answer 1

1) Paul and his shoes.

 

Set this up as a proportion

 

 10        15

----  =  ----

780         x

 

Cross multiply and solve for x

 

10x = 11700

x = 1170

 

He'll pay $1,170 for 15 pairs of shoes.

 

2) Zancas and the cookies

 

We can do the same thing here.

 

   1          12

-----  =  ------

1.75          x

 

Cross multiply

 

x = 21

Zancas will need 21 cups of flour.