well, I do not know which is x and which is y so I will call them w and L
50 = 2 w + L
so L = 50 - 2 w
or
w = (50-L)/2
A = w L = [(50-L)/2]L = 25 L - L^2/2
or
A = (50 - 2w)w = 50 w - 2 w^2
since I do not know which is x, I can not help with c
Mrs Harvey Wants To Put a 50 m Long Fence around Her Rectangular Garden. She Only Needs To Fence In 3 Sides Because The Other Side Is Alongside Her House.
(a) Write an Expression For y In Terms of x
(b) Write an Expression For The Area ( A ) Of The Garden , In Terms of x
(c) If x is 10m, find the area of the garden.
3 answers
Mrs Harvey Wants To Put a 50 m Long Fence around Her Rectangular Garden. She Only Needs To Fence In 3 Sides Because The Other Side Is Alongside Her House.
y=length
x=width
(a) Write an Expression For y In Terms of x
(b) Write an Expression For The Area ( A ) Of The Garden , In Terms of x
(c) If x is 10m, find the area of the garden.
y=length
x=width
(a) Write an Expression For y In Terms of x
(b) Write an Expression For The Area ( A ) Of The Garden , In Terms of x
(c) If x is 10m, find the area of the garden.
ok so w = x = 10
A = 50 w -2 w^2 = 50 x - 2 x^2
= 50(10) - 2(100)
= 500 - 200
= 300 m^2
A = 50 w -2 w^2 = 50 x - 2 x^2
= 50(10) - 2(100)
= 500 - 200
= 300 m^2
1 answer