Mark is making concrete. Concrete is made by mixing cement, sand and gravel in the ratio 1:2:3. Mark wants to make 600kg of concrete. How much sand does Mark need

Michael jogs 3,520 yards every day. What is the distance in miles that he will jog in 10 days? (1 mile = 1,760 yards)

What is 3 divided by 4563

Whats 6.2 as a fraction in simplest form

A right triangle abc is similar to triangle pqr such that the hypotenuse bc=10 and the hypotenuse qr=4. if ac=8, what is the length of pr? round your answer to the nearest tenth.

If you rearrange the equation so w is the independent variable, then what is u? -2u+6w=9

A survey was given and here are the results "Number responding less than 1 week" Gender - X N Males - 71 411 Females - 64 253 a) Construct a 95% confidence interval for the difference in the proportions of males and females at this university.

Select the graph that would represent the best presentation of the solution set. | 5x - 1 | < 1

One number is one more than four times another. the sum of the numbers is 16. find the two numbers

What is 3x - 4 + 20 = 55

From a circular card sheet of radius 28 cm, two circles of radii 7 cm each and a rectangle of length 3 cm and breadth 2 cm are removed. Find the area of the remaining sheets