Of the 52 boards jack used to build the deck, 20% of them had to be cut. how many boards did he have to cut?

Jack have to cut 11 boards.

Solution:

Given that , out of the 52 boards jack used to build the deck, 20% of them had to be cut.  

We have to find how many boards did he have to cut

Now, we know that, he have to cut 20% of 52 boards  

Here, 0.4 represents not fully cut board, but still that board is cut and treated as cut board.

Hence, jack have to cut 11 boards.

the answer for this question is 38

sorry can't

step-by-step explanation:

i googled though and something came up but it was in science langueage not common english sooo