1.20
2. a=10
3.b=10\
i believe those are the correct answers
Answer:
Step-by-step explanation:
Answer:
A=340m^2
Step-by-step explanation:
A=p times q divided by 2
20 times 34 is 680
680 divided bye 2 is 340
If brainiest is earned its greatly appreciated.
Answer:
Step-by-step explanation:
The given system is:
Since I prefer to use smaller numbers I'm going to divide both sides of the first equation by 3 and both sides of the equation equation by 6.
This gives me the system:
We could solve the first equation for and replace the second with that.
Let's do that.
Subtract on both sides:
So we are replacing the second in the second equation with which gives us:
Now recall the first equation we arranged so that was the subject. I'm referring to .
We can now find given that using the equation .
Let's do that.
with :
So the solution is (8,-1).
We can check this point by plugging it into both equations.
If both equations render true for that point, then we have verify the solution.
Let's try it.
with :
is a true equation so the "solution" looks promising still.
with :
is also true so the solution has been verified since both equations render true for that point.
The length is 5/4 times the amount of the width.
5/4 * 8 = 10
10 * 8 = 80