Each piece = (4/5) yards
(4/5) yards * 3 feet = 2.4 feet each piece
which equals 2 feet 4.8 inches each
The formula for perimeter is
P = 2l + 2w
In this particular case you are given that the length is three times the width:
3l = w
In this case, you are also given:
P = 120
Therefore,
120 = 2l + 2w
At this point you have a system of equations:
120 = 2l + 2w
l = 3w
Now you can use substitution (plug in 3w for l in the perimeter equation)
120 = 2(3w) + 2w
Simplify:
120 = 6w + 2w
120 = 8w
120/8 = 8w/8
15 = w
Plug in the width into one of your original equations to get the length:
l = 3*15
l = 45
Now you know that l = 45 and w = 15
Now, you plug this information in for your equation for area:
A = l*w
A = 45*15
A = 675
The area of the rectangle is 675 cm²
Obtuse angles not unit or straight obtuse angle
Answer:
-1/23x+-1.043478261
Step-by-step explanation:
Distribute -1/23 to x and 24
-1/23 times x equals -1/23x
-1/23 times 24 equals -1.043478261
So -1/23(x+24) = -1/23x+-1.043478261
Answer:a/b = c/d |cross multiply
ad = bc |divide both sides by a
d = bc/a
Step-by-step explanation:
