Question

i need help can someone help me with eliminating a variable to set up a quadratic equation

Answer 1

if we knew the equation, maybe

Answer 2

L=25ft W=10ft A=250sq ft

Answer 3

those arent variables; since each one has a specific value.

Answer 4

it says that A=LW and to define the relationship and then elimate a variable

Answer 5

the relationship is defined as; The Area of a rectangule varies directly to the product of the length and width

Answer 6

so what formula would i use to set up the quadratic equation

Answer 7

Without knowing precisely what it is they are talking about, I wouldnt be able to give you a better answer

Answer 8

1.Different pets need to have different areas. For example, a horse needs more space than a dog. Determine an area that is appropriate for your pet.
2.Define the shape of the rectangular area by establishing a relationship between the length and width of the rectangle. For example, L = 2W + 5, or W = 3L – 4. Be sure to include the appropriate units (inches, feet, yards, miles, or meters).
3.Using the fact that A = LW, together with the relationship defined in step 2, eliminate one of the variables to set up a quadratic equation.
4.Solve the quadratic equation using any of the techniques learned in this unit. The solution(s) will be one of the dimensions; use step 2 to find the other.

Answer 9

perhaps I would assume this for an answer:

L = 25; Width = 10; L = W+15

250 = L*W

250 = W(W+15)

250 = W^2 +15W

w^2 +15W -250 = 0

Answer 10

my L=25 and W=10 if helps

Answer 11

If i read you correctly, I posted an adequate solution. But lately, that a pretty big if :)

Answer 12

which means

Answer 13

ok thank you i think i got it now sorry i missed the reply you posted