There is a very simple way of dealing with percentages.
"increase" means add
"decrease/discount/reduce" means subtract
Now, we know that the original price is 100%.
100% = 1 (like 50% = 0.5)
So if an object's price is x and it is 20% off, we get:
100%x - 20%x
Taking x common,
x(100% - 20%)
= 0.8x
Therefore, if we fist add/subtract the percentages we can multiply directly with the original to get the answer. This is as follows:
5] Increase 101 by 16%
1 + 0.16 = 1.16
So the answer is:
101 * 1.16
= 117.16
6] Decrease 36 by 21%
1 - 0.21 = 0.79
The answer is:
36 * 0.79
= 28.44
7] Let original price be x, we know it is 35% off
1 - 0.35
= 0.65
0.65x = 13
x = 20
12X1
11+1
21-9
20-8
There is a lot more to make it 12
- -- There are 260.714 weeks total in 5 years.
But you can round by doing this:
52*5=260
This is because you have 52 weeks in a year and 55 years so you multiply.
Answer:
Step-by-step explanation:
To find the total surface area of the cylinder
We get
S.A=2πr^2+2πrh
S.A=2×3.142×4×4+2×3.142×4×10
S. A=100.544inches sq+251.36inches sq
S. A=351.904inches sq
Answer:
6x^2-3x
Step-by-step explanation:
Hope this helps!
