Search our library of GCSE questions

Top answers

All subjects

GCSE

How does Priestley explore responsibility in 'An Inspector Calls'?

Priestley believed that in a rapidly developing capitalist world, issues of social responsibility were of increasing importance. He explores this message in his play, 'An Inspector Calls' through a carefu...

Answered by Joseph N. • English Literature tutor

12438 Views

What does the percentage atom economy mean

It is the atomic mass of the desired product divided by the total atomic mass of all the products in the reaction, multiplied by 100

Answered by Tobias E. • Chemistry tutor

2536 Views

Solve the simultaneous equations 3x+2y=8 and 3y+4x=11

Equal out the x terms so 12x+8y=32 and 9y+12x=33Then subtract the first equation from the secondThis gives y=1Put this value into one of the equations so 12x+8=32Solve the equation giving x as 2.

Answered by Emily P. • Maths tutor

5054 Views

Explain why a person who has cystic fibrosis may have more lung infections than a person who does not have cystic fibrosis

People with cystic fibrosis have a faulty gene which means they produce excess amounts of mucus. Lots of this mucus is produced in the airways and tends to build up in the lungs. The function of mucus is ...

Answered by Tochi D. • Biology tutor

3670 Views

Rearrange the following to make 'm' the subject. 4(m - 2) = t(5m + 3)

The first step is to expand the brackets by multiplication. This can be done using the 'bird method'. This results in 4m – 8 = 5mt + 3tNow to collect all 'm' like terms of the equation on the LHS. This gi...

Answered by Taliesin C. • Maths tutor

4576 Views