SOLUTION: One-sixth of a steel beam of a bridge is in cement below the bed of a river. Two-fifths of the beam is in the water, and 78 feet of the beam are above the water. How long is the st

SOLUTION: One-sixth of a steel beam of a bridge is in cement below the bed of a river. Two-fifths of the beam is in the water, and 78 feet of the beam are above the water. How long is the st

Algebra.Com

Question 139781: One-sixth of a steel beam of a bridge is in cement below the bed of a river. Two-fifths of the beam is in the water, and 78 feet of the beam are above the water. How long is the steel beam?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
If is in the concrete and is in the water, then is in either the water or the concrete and is the part above the water. So if the total beam is x feet long, , which is to say . You do the arithmetic.
RELATED QUESTIONS
I m stuck at 2 Questions... Kindly answer them.... Q2.The length of a steel beam is a... (answered by richwmiller)

Deflection of a Beam. A 28-ft aluminum beam is tested between two hydraulic rams. If the... (answered by solver91311)

A steel beam is leaning against a wall. The bottom of the beam is 15 feet from the wall... (answered by stanbon)

HI please help me with this.The answer is stated at the bottom for your... (answered by stanbon)

HI please help me with this.The answer is stated at the bottom for your... (answered by checkley75)

Please help me to solve this word problem. A portion of a roller coaster is supported... (answered by scott8148)

One end of a rope is attached to a winch (circular drum) of radius 2 feet and the other... (answered by josgarithmetic)

hey, help me in my task please, thank you? A construction crew wants to hoist a... (answered by mananth)

In the roof design below, the lower support beam, A, is 34 feet. The vertical support... (answered by MathLover1)