A gold coin weigh 20 grams. If the coin contains gold, copper and tin and in the ratio 4:3:1 how much gold is there in the coin? Explain?

Two sides of a rectangular fence are 5 5/8feet long the other two sides are 6 1/4 feet long what is the perimeter

What is bigger 3/4 or 3/8

A flower pot weighing 3 newtons is sitting on a windowsill 30 meters from the ground what is its potential energy

F (x) = - 2x - 2 + k. What is value of k

What is the value of 54 - 4a2 3b3 when a = - 2 and b = 4?

What is the decimal 4.588 rounded to the nearest tenth

The second group of trainee astronauts are all sitting around the table, waiting to start their first day of training. From the clues given below, can work out where everyone sits? Note: Seat 1 is next to Seat 2 and Seat 8, etc.

How many triangles can be constructed with angle measurements 90°,45°,50° ?

What is the answer to 7 y - 1 equals 5 y + 9

Wat is the sign of the product of three integers with the same positive sign