Answer:
112
Step-by-step explanation:
The volume is given by l*b*h=4*4*7=112
Answer:
b its b
Step-by-step explanation:
bbbbb
Answer:
Both answers will give an area of 2400 ft2
but with x=60 we have lawn dimensions -60 ft by -40 ft so this is out
x = 10 ft width for the sidewalk
Check: New lawn dimensions
(80-2x)(60-2x) = 60(40) = 2400 ft^2
Step-by-step explanation:
Draw a diagram:
We have a rectangle inside a rectangle.
The larger outside rectangle is the original lawn: 80ft by 60 ft with area 4800 ft2
The smaller inside rectangle is (80-2x)by(60-2x) where x is width of the new sidewalk.
Area of new lawn is 2400 ft^2
(80-2x)(60-2x) = 2400
4800 - 160x - 120x + 4x2 = 2400
4x2 - 280x + 2400 = 0
Factor out a 4
x2 - 70x + 600 = 0
(x-60)(x-10) = 0
x = 60 ft or x = 10 ft
Answer:
x = 52
The exterior angle of a triangle is equal to the sum of the opposite interior angles
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the opposite interior angles
x+72 = 90+34
Combine like terms
x+72 = 124
Subtract 72 from each side using the subtraction property of equality
x+72-72 = 124 -72
x =52
Answer: 2.375 per book
Step-by-step explanation:
