The ratio of boys to girls in the 9th grade is 5 to 6. There are 312 girls. Set up a proportion to model this information.

Sin^2 x-1/4=0 find exact solution over the interval [0,2pi)

At the dog park, there are several dogs with their owners. Counting heads, there are 20; counting legs, there are 62. How many dogs and owners are there?

A school has over 500 students, 30 English teachers, and 20 math teachers. What is the ratio between the number of math teachers and the number of students?

If f (x) = x2 - 2 and g (x) = x-3, what is (f•g) (x) ?

What is the result when you combine only the constants in the following expression? 3a - 6b + 3 - 7a + 10

Consider the steps for solving 3x2 - 42x + 9 = - 5 for x by completing the square. Step 1: 3x² - 42x = - 14 Step 2:3 (x² - 14x) = - 14 Step 3: 3 (x^2 - 14x + 49) = - 14+__ What number should be added to the right side of the equation?

Mervin had some cartons of milk he sold 2/5 of the cartons of milk in the morning he then sold 2/4 of the remainder in the morning how many cartons of milk did mervin have at first

What is 3,490,000 in scientific notation

Laura hiked up lamb's canyon i 2 hrs and then ran back down in 1hr. her speed running downhill was 2.5 mph faster than her speed hiking uphill. How far up the canyon did she hiked

If you roll two fair six-sided dice, what is the probability that at least one die shows 3?