Save guides, add subjects and pick up where you left off with your BBC account. Sometimes in mathematics we like to use letters to represent numbers. The ‘value’ of these letters can change ...

Q 4. Write a pair of linear equations which has a unique solution x = 2 and y = −1. How many such pairs are possible? Q 5. If the sum of two positive numbers is 108 and the difference of these ...

Math Notes is a built-in feature that lets you crunch numbers on your iPhone, iPad, and Mac. Solve basic arithmetic and ...

Form the pair of linear equations in two variables from this situation. 2. Find the length of the outer boundary of the layout. 3. Find the area of each bedroom and kitchen in the layout. 4.

“We had to control how big a number shows up as we do this guessing and coordination,” said Peng. Peng and Vempala prove that their algorithm can solve any sparse linear system in n 2.332 steps. This ...

Imagine you are a 14-year-old kid again. You need to do this really difficult math exercise for tomorrow, but have no idea how to do it. What if you could ...