One application of volume is determining the density of an object. Assume the object is made of a pure element (eg: gold). If we know the volume (v) of the object, and we know the mass (m), then we can use the formula D = m/v to figure out the density D. Knowing the volume is also handy to determine if the object can fit into a larger space or not. Another application is figuring out how much water is needed to fill up the inner space of the 3D solid (assuming it's hollow on the inside).
The surface area is handy to figure out how much material is needed to cover the outer surface. This material can be paint, paper, metal sheets, or whatever you can think of really. A good example is wrapping a present and the assumption is that there is no overlap.
Answer:
x+5
Step-by-step explanation:
Since you don't know how much Joe weighs, you can express his weight as x. Then, you add on 5 because you have 5 more lbs than joe (which is x).
Answer:
Answer:
your answer is
m= -3
Math-way is a really good site for these kinds of problems i would recommend it if you need anymore help with stuff like this. :)
Step-by-step explanation:
Answer:
20 quarts
Step-by-step explanation:
there is 4 quarts in one gallon therefore there is 5 times one gallon.
5*4=20
Answer:
R < 3.25
Step-by-step explanation:
Set up the equation and simplify
-4r +35 > 22
isolate the variable
-4r > -13
You need to switch the sign when dividing or multiplying with a negative number
R < 3.25
