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Solve the two equations: Equation 1: 2a - 5b = 11 Equation 2: 3a + 2b = 7

Firstly, you should aim to eliminate one of the unknown values. As b is positive and negative in each equation, this would be a good value to eliminate. Both equations would have to be multiplied to cancel o...
IH
Answered by Ikraan H. • Maths tutor
6971 Views

Translate the following passage into Spanish:

When I was young I used to spend the summer holidays with my family here in England. I didn't enjoy them. I got bored quickly and the weather was often cold. If we ́d been better off we could at least have go...
EG
Answered by Esther G. • Spanish tutor
3085 Views

When is a system in equilibrium?

A system is in equilibrium when there is no resultant force and no resultant torque (or moment). A moment is the turning effect of applying a force on a body. It is the product of the force and the perpendic...
RT
Answered by Razvan T. • Physics tutor
4127 Views

How can I sketch a graph?

There are a number of steps before sketching a graph. We will look over bits of theory and then do some examples (I'll show the examples in the online lesson space) First we have to find the x-intercept and ...
RT
Answered by Razvan T. • Maths tutor
3912 Views

On a pirate ship, a 1.6m plank is held at one end to the ship. A 65kg pirate walks the plank with his 1.1kg parrot following 40cm behind him. What is the total clockwise moment acting on the plank when the pirate reaches the end of it?

Moment = force x distance Pirate: force = 65 x 9.81 =637.65 distance = 1.2 moment = 637.65 x 1.6 =1020.24 = 1020 Nm (3 sig fig) Parrot: force = 1.1x 9.81 = 10.791 distance = 1.6 - 0.4 = 1.2 moment = 10.791 x...
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Answered by Amy S. • Physics tutor
2612 Views