Sandy is working with a carpenter to frame a house. They are using 8-foot-long boards, but each board must be cut to be 7 feet inches long. How much is cut off each board?

Question

russkaya05 · Answer

any choices?

russkaya05 · Answer

ok look we have a mixture of units

Joslynn · Answer

1 1/4 in

7 in

3/4 in

1 3/4 in

russkaya05 · Answer

Its easier to make a comparison if all measurement use the same units.

russkaya05 · Answer

1 board is  8ft. Each foot has 12 inches in it. So they are $$8 * 12$$ inches long. This is 96 inches.

russkaya05 · Answer

The boards are cut to 94.6 inches long.

russkaya05 · Answer

The amount wasted is $$96.0 − 94.6$$
Write as:
$$96.0 - 94.6$$
There is a zero above the 6 so lets make this easier to work out
So the amount of waste is 1.4 inches

This is the same as $$1 \frac{ 4 }{ 10}$$ →$$ 1 \frac{ 2 }{ 5}$$ inches

russkaya05 · Answer

im so sorry if i tookforever to explain