Top answers

All subjects
KS3

If x=3 and y=7, which of the following gives value of 23?

1.) y2/x2.) x2+2y3.) xy4.) y2-2x2

MM
Answered by Megan M. Maths tutor
1828 Views

What is the difference in structure between graphite and graphene?

In graphite, carbon atoms are in layers which slide over each other. Whereas in graphene, there is only a single layer of carbon atoms.

MM
Answered by Megan M. Chemistry tutor
5324 Views

Describe the role of a neuron

A neuron, or a nerve cell takes up, processes and transmits information using electrical and chemical signals and is a basic component of the nervous system. Information is gathered through a process kno...

MJ
Answered by Marie J. Biology tutor
3097 Views

Describe the process of oxidative phosphorylation and explain the role of oxygen as the final electron acceptor

NADH and FADH are oxidised to release electrons. The electrons are passed through a series of specialised proteins complexes embedded into the inner membrane. As the electrons are transferred to the next ...

TR
Answered by Tamsin R. Biology tutor
3295 Views

Bob buys 33 pens and 21 rulers for £6. A ruler costs 8 pence more than a pen. How much does one pen cost?

Let the cost of a pen = xLet the cost of a ruler = x+8Thus, (x*33) + ((x+8)*21) = £6 = 600 penceHence, 33x + 21x + 168 = 600 54x = 432 x = 8Therefore one pen costs 8 pence.

GL
Answered by George L. Maths tutor
2301 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning