Answer:
50%
Step-by-step explanation:
To calculate the percentage of increase, what we must do divide the two quantities, in this way we will be able to know how bigger they are from each other. So:
9000/6000 = 1.5
Now, we subtract those from 1, which would be 100%
1.5 - 1 = 0.5
therefore the increase was 50%
Answer: 3.5
Step-by-step explanation:
2.10/0.6=3.5
3.5x0.6=2.10
Answer:
$58.20
Step-by-step explanation:
600 /200 = 3
3 * 19.40 = 58.20
Given:
The equation is
To find:
The value of x.
Solution:
We have,
It can be written as
Splitting the middle term, we get
Using zero product property, we get
Therefore, the values of x are 0, 4 and 5.
You can solve this by substitution.
x+y=10
x-y=4
===== add the equations
2x=14
x=7
Then plug in x into one of the equations
7+y=10
y=3
so x^2=7*7=49
y^2=3*3=9
Hope that helps!
