Answer:
Step-by-step explanation:
Perimeter of a garden = 2(L+W)
Area of the gerden = LW
L is the length
W is the width
Given
Perimeter = 155ft
Area = 1400ft²
Substitute
1400 = LW
155 = 2L+2W
from 1;
W = 1400/L
Substitute into 2;
155 = 2L + 2(1400/L)
155 = 2L + 2800/L
155L = 2L² + 2800
2L²-155L + 2800 = 0
Factorize
L = 155±√155²-4(2)(2800)/4
L = 155±√24025-22400/4
L = 155±√1625/4
L = L = 155±40.31/4
L = 194.31/4
L = 48.82 feet and;
L = 155-40.31/4
L = 28.67ft
Hence the approximate length of the garden is at least 28.67 feet and at most 48.82 feet.
Answer:
ok so i love math got a A on it here is the answer
Step-by-step explanation:
6 - 32/2 first you see how many time than u get -10
Answer:
54 km per hr
270 km
Step-by-step explanation:
1 metre per second is 3.6 km per hour.
15*3.6=54 km per hour
distance covered in 5 hrs=54*5=270 km
Answer:
x = 1/3
Step-by-step explanation:
3 3/4x = 1 1/4
15/4x = 5/4
x = 5/4 * 4/15
x = 5/15 which reduces to 1/3
7/5x = 7/15
x = 7/15 * 5/7
x = 7/21 which reduces to 1/3
The answer is A.
Hope it helps
