Make them all fractions over 4, so 3 would be 12/4, and 1 1/4 would be 5/4 so add them together
12/4+5/4= 17/4 then divide by 4 to reduce it, to get 4 1/4
While fire clay bricks have a density of 2400 kg/m3, for common red bricks it is 1900 kg/m3 . [
Answer is 64 and a factor is 6/4 .
Answer:
My guess is that the first box is 1 and the second box is 2 but that is a guess. I hope that helped! :)
Step-by-step explanation:
