Algebra Answers

In a class there are 20 boys and 15 girls. The ratio of boys to girls is.

a. 4:3

b. 3:4

c. 4:5

d. none of these

Two different fruit juices are mixed together. 7 liters of the first fruit juice contains 60% apple juice, and 5 liters of the second fruit juice contains 30% apple juice. Find the percentage of the new mix that is apple juice. 

Two different fruit juices are mixed together. 7 liters of the first fruit juice contains 60% apple juice, and 5 liters of the second fruit juice contains 30% apple juice. Find the percentage of the new mix that is apple juice.

expand by using binomial theorem: (x^2/2-2/x)^4

:Solve 4 𝑥+2 − 1 𝑥+3 = 4 2𝑥+1

Find a formula for an exponential or logarithmic function that matches each of the four graphs below. Write your formula carefully (on paper), taking care to use proper mathematical notation. Then scan or take a picture of your answers, and upload them for grading by your teacher. Provide complete explanations of how you arrived at your answers.

Find all x ∈ R that solve this equation: 123 = x

What is the % of 30

120 cases of beer in the store,30 cases are packed on the shelf.

So how many cases are in the store room?

(2⁶)^x=1