Cindy is making a fruit juice drink. The recipe calls for 5 parts apple juice and 3 parts pineapple juice. Cindy puts 2 1/2 cups of apple juice into a pitcher. Cindy wants the juice drink in her pitcher to taste the same as the drink in the recipe. How much pineapple juice does she need to mix into the pitcher? *

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15