Answer:
No.
Step-by-step explanation:
2:1 and 19:10 are not equivalent.
Simply, because if you divide 9 by any number with the 10, it is not going to stay as a whole number. For example, 19 divided by 2 equals 9.5. 19 divided by 5 equals 3.8. So, no they are not equivalent.
It's B.) The student’s answer is not reasonable. Estimation: 170 + 90 = 260
4.5 cm 1meter 1 km
* --------- * --------- = .000045 km
100 cm 1000m
4.5*10^-5 km
we are given
number of cubes in bottom is 3*16=18
we can see that
number of layers is 8
now, we can find total number of cubes
total number of cubes = number of layers*number of cubes in bottom
so, we get
total number of cubes = 8*18
total number of cubes is 144
so, option-C..........Answer