Answer:
£800
Step-by-step explanation:
Use the percentage formula: NV = m x OV
NV is New Value;
m is Multiplier;
and OV is Old Value.
£640 in the New value, so now we have to convert 20% to a multiplier and find out the Old value.
Make OV the subject of the formula: OV = NV / m
So 20% decrease would mean: 100 - 20 = 80 * 100 = 0.80
Divide 640 (NV) by 0.80 (m) and it will give you:
£800
And it would make sense that the OV is higher, and it matches the statement -> as the NV is the decrease.
The answer is X= -3 and the work is 8x+2x-5= -35 so the -5 turns to a positive 5 and cancels itself it out so -35 becomes -30 then you add 8x and 2x then you get get 10x then you divide -30 by 10 and you get -3
23.
Work:
5(6)-7
5(6)=30
30-7=23
I think the answer is chunking.
This is due to effect of chunking because chunking is basically the multi-store memorizing method.
