Answer: Well it will be very simple by swaping the place of the variable example we bring 19 to the left side to minus with -5 then bring it back to the right side ( that is already 2) then we dived and that is 3. This means you can swap any variable back and forth. The rest are your opinoin.
Answer:
y=4/5(x-5)+4
Step-by-step explanation:
y=m(x-h)+k
y=4/5(x-5)+4
The way these equations are arranged helps.
First only deal with the left handside.
<span>X^2+20x= (x+a)^2 -b where we are looking for a,b
You need to know the general formula for (x+a)^2=x^2+2ax+a^2
20x = 2*10x so a will be 10
(x+10)^2= x^2+20x+100
Now lets look at the original question:
</span><span>X^2+20x=10
we know now that </span>(x+10)^2= x^2+20x+100
Thus X^2+20x=(x+10)^2 -100
So X^2+20x=10 becomes
(x+10)^2 -100 =10
(x+10)^2=110
For the other question you need to follow the same logic.
Convert the fraction to a decimal:
1/25 = 0.04
Multiply by 100 to get the percent:
0.04 x 100 = 4%
The main numbers and ratios or rates depending on the problem
