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hjlf
3 years ago
7

A soccer field for a youth league has an area of 4000 square yards and is 60% longer than it is wide what is the length of the f

ield
Mathematics
1 answer:
olasank [31]3 years ago
4 0

Let

width,w

length, l = 1.6w ...eqn 1

area, a = l × w ...eqn 2

subst for l in eqn 2

a = 1.6 w × w = 4000

4000 = 1.6 w^2

w^2 = 2500

w = 50

subst for w in eqn 1

l = 50 x 1.6 = 80

length = 80 yds

width = 50 yds

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3 0
3 years ago
I need help with substitution​
Neporo4naja [7]

Answer:

(-7,-15)

Step-by-step explanation:

We can substitute first y in the second y. Both equations are also functions. We can merge the equations.

2x - 1 = x - 8  \\ 2x - x =  - 8 + 1 \\ x =  - 7

Substitute x = -7 in any given equations. I will choose the second equation to substitute in.

y = x - 8 \\ y =  - 7 - 8 \\ y =  - 15

<u>Answer</u><u> </u><u>Check</u>

Substitute both x and y in both equations.

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The equation is true for (-7,-15).

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The second equation is true for (-7,-15).

Therefore our answer is (-7,-15)

6 0
3 years ago
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