A board 12 3/4 feet long is cut so that 9 7/8 feet are left. What length of the board was cut off? A) 2 1/2 feet
B) 2 7/8 feet
C) 3 1/2 feet
D)3 7/8 feet

Answers

Answer 1

Answer: If you would like to know what length of the board was cut off, you can calculate this using the following steps:

12 3/4 feet long board - 9 7/8 feet = 12 3/4 - 9 7/8 = 51/4 - 79/8 = 102/8 - 79/8 = (102 - 79) / 8 = 23/8 = 2 7/8 feet

The correct result would be B) 2 7/8 feet.

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A piece of wood has a width of 5 cm and a height of 10 cm. Its volume is 100 cm3. What is the length of the wood?

Answers

The length of a piece of wood is 2 cm.

Given:
volume = 100 cm³
width = 5 cm
height = 10 cm
length = ?

Volume is computed by multiplying the length, width, and height of an object.

Volume = length * width * height

100 cm³ = length * 5 cm * 10 cm
100 cm³ = length * 50 cm²
100 cm³ / 50 cm² = length
2 cm = length

to check:
100 cm³ = 2 cm * 5 cm * 10 cm
100 cm³ = 10 cm² * 10 cm
100 cm³ = 100 cm³

Answer:

A piece of wood is 2 cm

Step-by-step explanation:

H/3=-12 solving equations by multiplying or dividing