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A shop sells bags of crisps in different size packs. There are 18 bags of crisps in a small pack (£4), 20 bags of crisps in a medium pack (£4.99) and 26 bags of crisps in a large pack (£6). Which size pack is the best value for money?

You can use the price of each pack and divide it by the number of bags of crips to get the price per packet, the one with the lowest price per packet will be the best value for money. The small packet cost £...
KG
Answered by Kahina G. • Maths tutor
14855 Views

A house increases by 25% to £80,000. Find what it was worth before the rise.

A 15% increase means that the £80,000 represents 115% of the original value . Therefore what we do is: £80,000=£125% divided by 125 which gives us £640 = 1% then we want to multiply by 100 to change this to ...
AP
Answered by Alicia P. • Maths tutor
4742 Views

2476 people are at a football match. The ratio of men to women is 3 : 1. How many more men than women are at the match?

Ratios are a way of comparing the amount of two things in a whole. In this case we are comparing the number of men and women in a football match, so, the total number of people at the match is equal to the s...
EB
Answered by Emma B. • Maths tutor
10530 Views

Simplify : 3a(b^2) * (a^3)b

Rearrange the terms and group: Numbers: (3*1) =3, a variables: a * (a^3) --> (1+3=4) Therefore (a^4); b variables: (b^2)*b --> (2+1=3) Therefore (b^3); Regroup: 3(a^4)(b^3)
SH
Answered by Sharleen H. • Maths tutor
4747 Views

Solve 3x+7=1.

3x+7 = 1. We can describe this equation as a stroy. First x was multiplied by 3 and then 7 was added to it to get 1. Now we need to reverse the story. last thing done was +7, so reversing it gives us -7. 1 -...
KW
Answered by Katarzyna W. • Maths tutor
26647 Views