At a school dance, the ratio of boys to girls is 7 to 5. What fraction of students at the dance consists of girls? (You must use the fraction form of a ratio

How to construct angle 150.5

Find two fractions with the difference of 1/5 but with neither denominator equal to 5

Amita decides that she wants the molds to have a square base from originally having a rectangular prism with a volume of 28 cubic centimeters - how many possible molds can she use

Pre-Algebra Lesson 11-1 Write the equation for the area A of a circle with radius r. Write the answer in terms of pie

Solve for x 3 (3x-4) - 8=4 (x+5)

Divide the following polynomials, then place the answer in the proper location on the grid. Write answer in descending powers of x. (2x3 + x4 - 6x2 + 11x - 10) (x2 + 2 - x)

What is 3.75 rounded to

A child takes a nap averaging three hours and gets an average of 12 hours of sleep at night. Nap time and night time sleep can each vary by 30 mins. What are the possible time lengths for the child's nap and night time sleep? ... ?

4x - 10 ≥ 22 or x - 5 < - 6

What does control for eximerment mean .