Answer:
10 cm³
Step-by-step explanation:
According to Archimedes, if we place an object in water, the rise of the water in mL will be the volume of the object in cm³.
Without the rock, the water measures 20 mL.
With the rock, the water measures 30 mL.
The change here is 
, so 10 cm³ is the volume of the rock.
Hope this helped!
Lets set up the relationship of the length to width:
l = 3w
Using this, we can make all the variables the same by substitution:
2l + 2w = perimeter
2l + 2w = 72
2(3w) + 2w = 72
6w + 2w = 72
8w = 72
w = 9
The width is 9, to the length must be 9*3, or 27.
Hope this helped!
the answer is 5.196152423
Answer:
Step-by-step explanation:
16 is especially important, so start with it.
F = 5/9 * C + 32 Subtract 32 from both sides.
F - 32 = 5/9 C + 32 - 32 Combine
F - 32 = 5/9 C Multiply both sides by 9/5
9/5(F - 32) = 9/5 * 5/9 C Combine
9/5(F - 32) = C
Fifteen
V = pi * r^2 * h / 3 Multiply both sides by 3
3V = 3*pi * r^2 * h/ 3 Combine
3V = pi * r^2 * h Divide by pi
3V/(pi ) = r^2 * h Divide by r^2
3V / (pi * r^2) = r^2 * h / r^2 Combine
3V / (pi * r^2) = h
The answer is 60.
Hope this helps.<3
Have a great day!!
