Answer:
the answer is n=24
Step-by-step explanation:
hope this helps :)
Answer:
0.16
Step-by-step explanation:
Answer:
7 hours
Step-by-step explanation:
120 x 7 = 840
You need to find the 2 numbers that will estimate to the nearest hundred.
here is your answer 13 x 213
Answer:
Dimensions of the rectangular plot will be 500 ft by 750 ft.
Step-by-step explanation:
Let the length of the rectangular plot = x ft.
and the width of the plot = y ft.
Cost to fence the length at the cost $3.00 per feet = 3x
Cost to fence the width of the cost $2.00 per feet = 2y
Total cost to fence all sides of rectangular plot = 2(3x + 2y)
2(3x + 2y) = 6,000
3x + 2y = 3,000 ----------(1)
3x + 2y = 3000
2y = 3000 - 3x
y = ![\frac{1}{2}[3000-3x]](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%5B3000-3x%5D)
y = 1500 - ![\frac{3x}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B3x%7D%7B2%7D)
Now area of the rectangle A = xy square feet
A = x[
]
For maximum area ![\frac{dA}{dx}=0](https://tex.z-dn.net/?f=%5Cfrac%7BdA%7D%7Bdx%7D%3D0)
A' =
= 0
1500 - 3x = 0
3x = 1500
x = 500 ft
From equation (1),
y = 1500 - ![\frac{3}{2}\times 500](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B2%7D%5Ctimes%20500)
y = 1500 - 750
y = 750 ft
Therefore, for the maximum area of the rectangular plot will be 500 ft × 750 ft.
two fencing 3(500+500) = $3000
other two fencing 2(750+750) = $3000