Maths
Find the angle, in degrees and minutes, that a straight line makes with the positive direction of the x axis if its gradient is 0.853
Chemistry
Find the mass of oxygen gas needed to react with 0.2 moles magnesium and the mass of the product? Working out please
Maths
The product of two consecutive positive numbers is 42 Find the numbers Please write this problem in quadratic equation form please
Chemistry
What mass of magnesium, Mg, contains the same number of atoms as 12g of Carbon, C Could you please show the method too Thanx :)
Maths
Suppose you were to leave $100 to be equally divided between your great great grandchildren 100 years from now. Given that you can secure annual interest at 6% pa, what would this amount be? Find the compound interest, compounding monthly? Please show all working out :)
Maths
Multiple-choice questions in a test are graded by adding 2 marks for each correct response and subtracting 1 mark for each incorrect response (including no response). Rory and Jenny answered all the multiple-choice questions, with Rory scoring 27 and Jenny scoring 42. Rory ans...
Maths
A company employs 4 times as many unskilled workers as it does skilled workers. Unskilled workers earn $650 a week, and skilled workers earn $850 a week. The weekly wage bill for these workers is $17 250. How many skilled and unskilled workers are there? Simultaneous equations
Maths
Con has twice as much money as Fiona. If Fiona earns an extra $15, Con will only have one-and-a-half times her amount. How much money does each person have? Simultaneous equations
Maths
A hall has 1325 seats. These are arranged in rows of 35 seats or 40 seats. The ratio of 35-seat rows to 40-seat rows is 3 : 4. How many rows are there? Simultaneous equation please
maths
The linear equation F=ac + b is used to change temperature from degrees Celsius (°C) to degrees Fahrenheit (°F). Given that 0°C = 32°F and 100°C = 212°F, calculate the constants a and b.
For Further Reading
