A 20% acid solution is mixed with a 70% acid solution to get 50 liters of a 40% solution.

Which of the following expressions is equal to 4 (50)

A. 0.2x + 0.7y

B. 2x + 7y

C. X+Y

Dan's book log show that he read a total of 4 1/4 hours last month. how many minutes is that?

Which system of equations below has no solution? A. y = 4x + 5 and y = 4x - 5 B. y = 4x + 5 and 2y = 8x + 10 C. y = 4x + 5 and y = 1/4 + 5 D. y = 4x + 5 and y = 8x + 10

11. Which equation could you use to find the next term in the pattern 6, 18, 54, 162, ... ? A. A (n) = 6n2 B. A (n) = 6. 3n C. A (n) = 6n-1 D. A (n) = 6 (3) - 1

A circle is represented my the equation x^2 + (y+3) ^2=13 what are the coordinates of the center of the circle and the length of the radius

An arithmetic sequence has a first term of 3 and a fifth term of 31. What is the second term?

Which expression is 5 times as large as the expression 345+23

A person has 22 coins, all nickels and dimes, worth one dollar and 50 cents. How many nickels are there? 8 14 22

The function f (x) = 3x+4 is a linear function. Let g (x) represent f (x) after a horizontal translation 2 units to the left. What is the equation for the function g (x) ? Enter your answer in the box. g (x) =

You are painting a room. After 18 minutes, 64% of the room still needs painted. How long does it take to paint the entire room? Write an equation that represents the percent y of the room that still needs painted after 3 minutes.

46,145 round to the nearest ten