1.5 sticks of butter for 24 cookies 48 / 24 = 2 1.5 * 2 = 3 3 sticks of butter for 48 cookies (double the cookies, double the butter) 72/24 = 3 1.5 * 3 = 4.5 4.5 sticks of butter for 72 cookies (triple the cookies, triple the butter)
Let x represent the amount of sticks of butter you need First of all, we will find the amount of sticks of butter needs for 48 cookies by using Tree Diagram and Cross Multiply 1 1/2 sticks of butter:24 cookies Or 3/2 sticks of butter:24 cookies x sticks of butter:48 cookies Use cross multiply 48*3/2=24*x 72=24x Divided 24 to each side 72/24=24x/24 x=3 sticks of butter, so you will need 3 sticks of butter to make 24 cookies Or We know that 48 cookies is double 24 cookies. In conclusion, we know that the amount to make 48 cookies is double, so 1 1/2*2 =3/2*2 =3 sticks of butter
Next, 1 1/2 sticks of butter:24 cookies x sticks of butter:72 cookies Use cross multiply 1 1/2*72=24*x 3/2*72=24x 108=24x Divided 24 to each side 108/24=24x/24 x=108/24 x=54/12 x=27/6 x=9/2 x=4.5 sticks of butter, so you will need 4.5 sticks of butter for 72 cookies. Hope it help!
