You divide 16 into 12 and get 1.3 repeating
X/y
- 8/20=42/y
- 0.4=42/y
- y=42/0.4
- y=105
A
41 is not divisible by any number other than 1 and itself so it is prime and not composite and obviously 41 is a whole number so BCD are eliminated
A general formula for the volume of a container is V = length x width x height (other words may be used in place of the three given).
3. 900 in^3, the fourth option
V = 20 x 15 x 3
V = 900 in^3
4. 288 in^3, the third option
V = 6 x 6 x 8
V = 288 in^3
Hope this helps!! :)
You know that 7*7 is 49, and 6*6 is 36. Now you know it will be 6._. 6*7 is 42, so think of that as 6.5^2. You know that it will most likely be less than 6.8 since it is so close to being 7*7, which is 4 above your desired number. This leaves 6.6 to 6.8 as your estimate. Personally, I would go straight in the middle and choose 6.7.
I hope this helps!