Answer:
50
Step-by-step explanation:
Diagonals of a parallelogram bisect each other. So HK = JK and GK = LK.
HK = JK
c − 7 = 3c − 33
26 = 2c
c = 13
GK = LK
c + 12 = LK
13 + 12 = LK
25 = LK
GL is the sum of GK and LK:
GL = GK + LK
GL = 2LK
GL = 50
Answer:
It's B) -2
Step-by-step explanation:
Answer:
1200
Step-by-step explanation:
15/4 × 320/1 = 4800/4
simplify
The answer is 23 ...
Take 3.28 and add it to itself 6 more times to get 22.96
rounded up is 23 :) Hope I could be of assistance.
<span>Answer:
The multiplication factor of increase should be inverse of the multiplication factor of decrease.
e.g. Say you have a number 100.
You increase it by 25%. The multiplication factor is 5/4 i.e. when you multiply 100 by 5/4, you get 100*5/4 = 125. This is 25% more than 100.
Now you want to decrease it by a certain % such that you get 100 back.
Basically, 100*5/4 * x = 100
So x = 4/5 (inverse of 5/4)
Hence, you decrease by 20% (the multiplication factor of 20% is 4/5)
or
Use this formula: cumulative % change = a + b + ab/100
You want the cumulative change to be 0.
a + b + ab/100 = 0
If you know that you are increasing by 25% and want to find the % by which you should decrease to get the same number,
25 + b + 25b/100 = 0
5b/4 = -25
b = -20
So you need to decrease (hence you get the -ve sign) by 20%.</span>
