SOLUTION: the length of a room exceeds its breath by 8dm. If each had been increased by 2dm the area would have been increased by by 60 square dm. Find the dimension
Algebra.Com
Question 1054994: the length of a room exceeds its breath by 8dm. If each had been increased by 2dm the area would have been increased by by 60 square dm. Find the dimension
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
(w+2)(w+10) - (w+8)w = 60
w^2 + 12w + 20 - w^2 - 8w = 60
4w + 20 = 60
4w = 40
w = 10m, L = 18m
checking
(w+2)(w+10) - (w+8)w = 60 ng:
12m*20m - 18m*10m = 60m^2 CHECKS!
RELATED QUESTIONS
the length of a room exceeds its breath by 3dm. If the length of a room had been... (answered by ikleyn)
the length of a room exceeds its breath by 3dm. If the length of a room has been... (answered by ikleyn)
The area of a grassy plot is 480 metres. If each side had been 5m longer, the area would... (answered by mananth)
the length of a room exceeds its breadth by 3m. if both, the length and the breadth are... (answered by josgarithmetic,MathTherapy)
The length of a rectangle exceeds its width by 6 units. If each dimension were increased... (answered by ankor@dixie-net.com)
The length of a rectangle exceeds its width by 6 units. If each dimension were increased (answered by fractalier)
The length of a rectangle exceeds its width by 6 units. If each dimension were increased... (answered by Boreal,MathTherapy,ikleyn)
The length of a rectangle exceeds its width by 6 units. If each dimension were increased (answered by josgarithmetic)
The length of a rectangle exceeds its width by 2 feet. If each dimension was increased by (answered by ankor@dixie-net.com)