What is the area of triangle GHJ
1 answer:
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Option A
The solution is
<em><u>Solution:</u></em>
<em><u>Given system of equations are:</u></em>
3x + 6y = 1 ------ eqn 1
x - 4y = 1 ------ eqn 2
We have to find solution to system of equations
We can use substitution method
From eqn 2,
x = 1 + 4y -------- eqn 3
Substitute eqn 3 in eqn 1
3(1 + 4y) + 6y = 1
3 + 12y + 6y = 1
18y = 1 - 3
18y = -2
Divide both sides by 18
Substitute the above value of y in eqn 3
Thus solution is
A perimeter of a rectangle is:
They give you the width, but let's convert it to an improper fraction first:
The length is twice the width so it is:
Now, we are ready to solve, plug in values in the perimeter formula:
So, 40 is your answer.
They give you the width, but let's convert it to an improper fraction first:
The length is twice the width so it is:
Now, we are ready to solve, plug in values in the perimeter formula:
So, 40 is your answer.