You can set up an equation.
Let x = measure of the length.
Width: 2/3x
Length: x
From the question, we know that the perimeter is 70 and based on our prior knowledge, we know that for a rectangle, the perimeter is equal to 2 times the length added to two times the width.
2(2/3x + x) = 70
4/3x + 2x = 70
10/3x = 70
x = 21
So the length is 21 meters.
And since the width is 2/3 the length, 2/3 x 21 is 14.
So the width is 14 meters.
And if you add 21 + 21 + 14 + 14, it will equal 70 meters.
Now let's find the area.
21 x 14 = 294 square meters.
Answer:
x=6 and y=2
Step-by-step explanation:
3x+5y=28
−4x−5y=−34
Add these equations to eliminate y:
−x=−6
Then solve −x=−6 for x:
−x=−6
(Divide both sides by -1)
x=6
Now that we've found x let's plug it back in to solve for y.
Write down an original equation:
3x+5y=28
Substitute 6 for x in 3x+5y=28:
(3)(6)+5y=28
5y+18=28 (Simplify both sides of the equation)
5y+18+−18=28+−18 (Add -18 to both sides)
5y=10
(Divide both sides by 5)
y=2
F(10) = (10)^2 + 1
= 100 + 1
= 101
101 is the answer
Answer:
The Answer is 31.5
Step-by-step explanation: