Answer:
61.6
Step-by-step explanation:
tan(72) = x/20
x = 61.6 rounded to the nearest tenth
Answer:
210 by 120
Step-by-step explanation:
perimeter=2l+2w
length= 2w-30
width= w
2(2w-30+w) = 660
6w-60= 660
6w= 720
w=120
length= 2*120-30 = 210
Answer:
605/12 ft by 121/12 ft
Step-by-step explanation:
So, the dimensions of the dog run would be 5x as the length and x as the width.
The perimeter of this dog run would therefore be :
5x + 5x + x + x = 12x
From here, we know that 12x = 121 ft, so x = 121/12 ft
so the final dimensions of the dog run would be 605/12 ft by 121/12 ft
Answer:
6 – x ft
Step-by-step explanation:
If a 6-foot board is cut in two pieces, both lengths could be anything that add up to 6 feet since the problem did not specify where the board was cut.
So if one piece is x feet long, the other must be 6 - x feet long because:
x + (6 – x) = 6
