So yes the board is wide enough. The are 10 decimeters in a meter.
What it is asking you to do in the example above is multiply 2.5/23.5 by 1.2 both top and bottom aka the numerator and denominator. This makes it easier to view and divide.
I didn't use this method I just looked at it but give it a try for your answer to B
We know that formular for volume of pyramid=area of base ×height
the area of the base is 1/2×base×height
=1/2×15×14
=105cm²
the given volume is 270cm³
∴height=volume÷base area
=270cm³÷105cm²
=

=
Because empty set has no element which automatically make it a subset of every set.
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Answer:
Rate
Step-by-step explanation:
Rate is basically also a ratio. but it is the comparing of two different quantities with different units.
As ratio is comparing of same or identical quantities thus it has no units. But on the other hand as rate is the comparison of different quantities, thus it has units.
for example:
When i compare two quantities, 1st is a distance quantity and 2nd is a time quantity i.e.
20 meters : 15 seconds
thus the lowest form of this relationship will be:
4 meters : 3 seconds
when i write it in Decimal form it becomes :
Ans : 1.33 meters/second (Distance per unit time)
As this ratio have remaining units thus it is referred to as "RATE".
Answer: 1.6464
Step-by-step explanation: I think.