W= width
L= length= 2W-4
Perimeter= 70
FIND WIDTH:
P= 2(L + W)
P= 2L + 2W
substitute 2W-4 for L
70= 2(2W-4) + 2W
multiply 2 by all in parentheses
70= (2*2W) + (2*-4) + 2W
70= 4W - 8 + 2W
combine like terms
70= 6W - 8
add 8 to both sides
78= 6W
divide both sides by 6
13= W
FIND LENGTH:
substitute w=13 to find width
L= 2W-4
L= 2(13)-4
L= 26-4
L= 22
CHECK:
P= 2(L + W)
70= 2(22 + 13)
70= (2*22) + 2(13)
70= 44 + 26
70= 70
ANSWER:
length= 22 inches
width= 13 inches
Hope this helps! :)
4.5/9. It is technically an improper fraction but it still counts.
???????????????????????????
Answer:
33.1
Step-by-step explanation:
The tree would be 33.1 feet in 9 years.
the problem i put in my calculator is 3.1 * 9 + 5.2 , this is because if there is no sign indicating to add, subtract ect. you will multiply
Answer: 6 plots
Step-by-step explanation:
Since the mayor uses one of the three acres for a playground, we now have 2 acres left. Since each plot is one third of an acre, we know we can fit three plots into each acre. We have two acres, so 3x2=6. We have 6 plots.