Afruit punch contains 20% fruit juice is combined with 100% fruit juice how many ounces of each should be used to make 40oz of a mixture that is 60% fruit juice

46

step-by-step explanation:

given

height = 168 cm

formula

height =2.47*f+54.13

solution

168 = 2.47f + 54.13             subtract 54.13 from both sides

168 - 54.13   = 2.47f             combine

113.87 = 2.47f                     divide by 2.47

113.87 / 2.47 = f                   combine

46.1 = f  

answer: 46 cm

she made 48 + y = a cookies.     not enough info is given to find the total.

by definition every angles supplementary opposite by vertex are congruent