in the school chorus, 2/5 of the students are fourths graders and 1/3 of the students are fifth graders. If there 45 students in chorus, how many students are either fourth graders or fifth graders?

A fraction becomes 9/11, if 2 is added to both the numerator and the denominator. If, 3 is added to both the numerator and the denominator it becomes 5/6. Find the fraction.

There are eight boxes. Each box holds one sweater. There are 3 blue, 2 brown, 1 green, and 2 red sweaters. What is the probability of first selecting a red sweater and then selecting a blue sweater? A) 5/15 B) 3/32 C) 4/12 D) 3/28

If a central angle measures 54°, how would you find the intercepted arc created by the angle? Set the angle and arc measures equal. Divide the angle measure by two. Multiply the angle measure by two.

When StartFraction 2 x squared Over y EndFraction = StartFraction w + 2 Over 4 EndFraction is solved for w, one equation is w = StartFraction 8 x squared Over y EndFraction minus 2 Which of the following is an equivalent equation to find w?

easy question: In PE class, Carl runs a distance of 1.17 miles in 9 minutes. At that rate, how far does Carl run in one minute?

There is a total of 270 men, women and children on a train. The ratio of men to women is 4 : 5. The ratio of women to children is 10 : 9. How many men are on the train?

1/3 (6x-15) = 1/2 (10x-4) solve for x

Find the center of a uniformly solid cone of base diameter 2a and height h

Logan drew 8 hearts and 14 circles. What is the ratio of hearts to all shapes?

Which statement about sqrt x-5 minus sqrt x=5 true? -3 is a true solution -3 is a extraneous solution 9 is a true solution 9 is a extraneous solution