A few days ago
Crimson Crow

Stuck at maths homework. plz help!!!?

A farmer has 260 metres of clear plastic fencing. He uses all the fencing to create a retangular holding pen.

(a) Taking x as the length of the pen, write down an expression for the width of the pen in terms of x .

(b) Given that the area of the pen is 4000 square metres, form and equation and solve it to find x , the length of the pen.

Top 2 Answers
A few days ago
Barkley Hound

Favorite Answer

2x + 2y = 260

x * y = 4000

Just solve the first one for y and substitute your answer into the second equation.

2y = 260-2x

y = 130-x

x*(130-x) = 4000

130x-x^2 = 4000

x^2-130x+4000 = 0

I’m stuck

☼

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A few days ago
Anonymous
a. there are 4 sides to a rectangle and they have to equal to 260; therefore, 4x=260. now solve for x

b. area is x^2, that’s x squared. so the formula is 4000=x^2. i’m sure you can do the rest

0

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