Answer:
The width of the tank is 5 feet.
Step-by-step explanation:
Let the width of the tank be 
.
Then, the length of the tank will be 
and the heigth will be 
.
It was given that the volume of the tank is 
.
Recall that the tank is a cuboid or a rectangular prism.
The volume is given by;
.
We substitute the given values into the formula to obtain;
We expand to obtain
Therefore the width of the tank is 5 feet.
Lisa bought a new phone which cost $420 and today is her birthday so she got 40% off. What will be her final price for her phone ?
Solution is $252
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It loses its negative sign.
Answer:
a c and d
Step-by-step explanation:
A
rational number is any number that can be written as the
ratio between two other numbers i.e. in the form
Part A:
An easy choice that makes sense is 7.8, right in the middle. To prove that it's rational we need to write it as a ratio. In this case we have
Part B:
We need a number that can't be written as a ratio (because it neither terminates nor repeats). Some common ones are
,
,
and
so it makes sense to try and use those to build our number. In this case
works nicely.
