A small child makes 3 piles of blocks in a room. Each pile has 4 blocks. In another room, he makes 6 more piles of blocks. These
piles also have 4 blocks each. To count the total number of blocks, his sister counts that there are 3 times 4, or 12 blocks, in one room and 6 times 4, or 24 blocks, in the other room for a total of 36 blocks. Using the distributive property, what is another way she could have counted the blocks?
·She could have added the number of piles before multiplying by 4.
·She could have found the number of blocks in 4 piles and added it to the number of blocks in 5 piles.
·She could have switched the order in which she added the 12 and 24.
·She could have counted each block separately.
We know that the square of (+4) is 16 and also for (—4) is 16. We normally takes interest in positive square value for a square root. Therefore, The principal square root of 16 is 4
80 percent of 52.5 percent of the trip is 42 percent therefore, 4 hours and 12 min (or 252 min) is 42 percent of the trip so 252/.42 = x/1 x = 600 min the whole trip was 10 hours
