Answer:
4:5
Explanation:
If M is 20% less than N, then we can think of M as being 80% of N. This gives us a ratio of 80:100 (80% to 100%, 20% less), which can then be simplified to the ratio 4:5.
Hope this helped!
Answer:
3 times
Explanation:
When the dough is folded, it increases by a constant factor. We can model the growth of the thickness using the exponential growth model

Where:
Initial thickness,
= 2mm
Growth factor, r =8%=0.08
We want to find the smallest number of times Soon Yi will have to roll and fold the dough so that the resulting dough is at least 2.5mm.
i.e When 

Therefore, the smallest number of times Soon Yi will have to roll and fold the dough so that the resulting dough is at least 2.5mm thick is 3.
Answer:
21 feet
Explanation:
The graph shows the column with a diameter of 5 ft will have a height of 35 ft. Similarly, it shows a column with a diameter of 2 ft has a height of 14 ft. The wider column is taller by ...
35 ft -14 ft = 21 ft
<span>Laurence Peter believes that in a bureaucracy, employees often are promoted beyond their level of competence. He was a Canadian educator and was known for formulating the Peter Principle which states, "P</span><span>eople are promoted into positions they are not qualified to perform."</span>