tina's preschool has a set of cardboard building blocks, each of which measures 9 inches by 9 inches by 4 inches how many of these blocks will tina need to build a wall 4 inches deep, 3 feet high , and 12 feet long. please explain how to do this
convert all the feet to inches first. Then multiply 9x9x4 to see the volume of each block. Then find the volume the wall by multiplying the dimensions of the wall. Lastly, put the volume of one block over the volume of of the wall and that is your answer
can you show me how to solve it?
yes first do 9 x9x4 this gives you the volume of one block, which is 324
then you need to find the volume of the wall, but first convert feet to inches so you have 4 by 36 by 144
then multiply to find the volume of the wall, so it is 20736
then divide the volume of the wall by the volume of 1 block to see how many bloacks will fit into 1 wall so 20736/324 and your answer is 64
its like if you wanted to see how many 4s went into a 12 you would do 12/4 but in this case you want to see how many block in a wall so you do wall/block
do u understand?
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