Year 8 Converting and Percentage INC DEC and Rearanging Flashcards
1
Q
Write 0.3 Recurring as a fraction:
A
0.3 Recurring = x 10x = 3.3333 - x = 3/9 or 1/3
2
Q
How do you find the decimal from a fraction?
A
If you had 7/8 put the 8 on the outside of the bus stop and work it out
3
Q
How do you find the percentage from a fraction like 7/8?
A
100 Divide by 8 x 7
4
Q
Let’s say that a business has 1,230 Employers and 200 have now retired whats the percentage decrease now?
A
16.26016% Difference divided by Original x 100
5
Q
Convert 2/14 into a decimal
A
0.142…
6
Q
Rearrange to make the subject d a=1/4 πd^2
A
4a=πd^2 4a/π = d^2 Answer = √4a/π = d
7
Q
Rearaning to get n: k = 3n+2/n-1
A
n = 2-k/k-3
8
Q
Rearrange to make y the subject y 3y-9x=24
A
y=8+3x
