Shaun needs to make mortar for brick-laying. It is made in the ratio 7:3 of sand to cement.

If 210 kg of sand is used, how much cement is needed?

What is (-2,2) multiplied by 2.5 and (2,1) multiplied by 2.5

Simplify the following expression. 1/2 1/4=

3 х + 6y = 24 ya 6 х + 4 by using substitution

A rectangular garden has a width of 5 feet And the length of 10 feet. If an equal amount is added to both the width and length, the area is increased to 104 ft.² what is the amount?

Simplify this math problem 8m (m+6)

Complete the following. Show all work for calculations. 1. List the dimensions of your box. Be sure to include the units (in, cm, ft, etc.). 2. Describe the shape of the cross section when the box is cut parallel to the base? 3.

What is the area of the figure? a square with 7 in. base and 7 in. height

Find the length of xpy leave your answer in terms of pi the radius is 6m and the circle is cut in fourths

Sammy bought a new car. The depreciation equation is given by f (x) = 30,000 (.85) x, where x represents the number of years since the purchase of the car, and f (x) represents the value of the car.

A cross-country skier covered 1/3 of her race in one hour, 2/5 of the race during the next hour, and the remainder of her race in the third hour. What fraction of the race did the skier cover during her third hour?