How much pure acid should be mixed with 4 gallons of a 60% acid solution in order to get an 80% acid solution

What is variability?

A family spends $450 every month on food. If the family's income is $1,800 each month, what percent of the income is spent on food?

A two digit number its a multiple of 6 and 12. its a factor of 108 the sum of its digits is 9 what number is it?

Write a compound inequality that represents the following phrase. all real numbers that are between - 2 and 8 (this * is more than) A. - 2<*n<8 B.-2<n<8 C.-2<n<*8 D.-2<*n<*8

Find the solution of the square root of the quantity of x plus 2 plus 4 equals 6, and determine if it is an extraneous solution.

Which statement is true about this data set? {70, 67, 66, 65, 66, 78, 68, 71, 80, 78, 72} 65 is an outlier because it is less than the lower fence. 80 is an outlier because it is greater than the upper fence. This data set has no outliers.

Rachel can buy licorice sticks for $0.75 and cherry candies for $0.50 and has a budget of $25. If her expenses are represented by the equation 0.75x + 0.

What is my number? Clue 1 My number is a multiple of 2 and 7. Clue 2 My number is less than 100 but greater than 50. Clue 3 My number is the product of three different prime numbers.

Using radians, find the amplitude and period of each function. 1) y = 1/2 * cos 2θ + 1 2) y = 1/9 * sin 4θ + 5

Find the given value of the function. 1 w (t) = 3t - 1; t = 3