Wednesday

January 28, 2015

January 28, 2015

Posted by **Anonymous** on Wednesday, December 26, 2012 at 7:22am.

- math-Arithmetic progression -
**drwls**, Wednesday, December 26, 2012 at 7:33amThe number of rungs is eleven. Measured from the bottom rung up, their vertical distances are 0, 0.25, 0.50, 0.75, 1.0. 1.25, 1.50, 1.75, 2.00, 2.25 and 2.50 meters. Rung length increases from 45 at the bottom to 25 at the top, so rung lengths are:

45, 43, 41, 39, 37, 35, 33, 31, 29, 27 and 25 cm.

Add up those numbers for wood length required. Looks like 11 x 35 = 385 cm

**Answer this Question**

**Related Questions**

math - A firefighter stood on the middle rungs of a ladder ,spraying water on a ...

math 4 grade - A firefighter stood on the middle rungs of a ladder ,spraying ...

math - tilissa was on the middle rung of a ladder.she went up 3 rungs,thendown 5...

Math - 20.A firefighter spraying water on a fire stood on the middle of a ladder...

physics - A straight ladder is leaning against the wall of a house. The ladder ...

physics - A straight ladder is leaning against the wall of a house. The ladder ...

physics - A straight ladder is leaning against the wall of a house. The ladder ...

math - aladder attached to the side of a ship has ten rungs each one foot apart ...

Physics - A 8.78 -m ladder with a mass of 23.8 kg lies flat on the ground. A ...

Physics - A 9.67-m ladder with a mass of 25.0 kg lies flat on the ground. A ...