Answer:
Step-by-step explanation:
Width =w
Length = w + 6
Perimeter of rectangular room = 54 m
2*(length +width ) = 54
2*(w +6 + w) = 54
2*(<u>w +w</u> + 6) = 54 {Combine like terms}
2*(2w + 6) = 54
Use distributive property
2*2w + 2*6 = 54
4w + 12 = 54
Subtract 12 form both side
4w = 54 - 12
4w = 42
Divide both sides by 4
w = 42/4
w = 10.5 m
Length = 10.5 + 6 = 16.5 m
Length = 16.5 m
Width = 10.5 m
Well she starts with $7 and gets $1 the first time by selling it one dollar more than she bought it for. Then she loses nine dollars so that's $1-$9 which is -$8. Then she makes $10. So that would be -8+10 which is 2. So she made $2 profit.
Answer: A = 30, B = 91, C = 59
Step-by-step explanation:
(2x-1)+(3x+1)+x = 180
2x-1+3x+1+x=180
6x=180
x=30
Answer:
20.875
Step-by-step explanation:
47.678-(15.463+11.34) =20.875