Answer:
1 out of 6
Step-by-step explanation:
Answer:
35 minutes
Step-by-step explanation:
The total amount of water is 200 +60 = 260 gallons. The two tanks will have equal amounts when each has half that, or 130 gallons.
If the volume in tank 2 is increasing at 2 gallons per minute, it will increase by 70 gallons from 60 gallons to 130 gallons in 70/2 = 35 minutes.
Answer: 21.3
Step-by-step explanation:
63.9 divided by 3 equal pieces is 21.3!
81 is 45% of 180.
Simply multiply the percentage rate to the whole to get the part it is representing.
180 is the whole or 100%
45% is the percentage rate of the part.
180 x 45% = 81
81 is the value of the part
Assuming the part and the whole is given, to get the percentage rate, simply divide the part by the whole. and multiply its quotient by 100%.
81/180 = 0.45 x 100% = 45%
In the instance that the part and its corresponding percentage rate is given, find the whole. divide the part by its percentage rate.
81/45% or 81/0.45 = 180
Answer:
a difference of squares
Step-by-step explanation:
Let's write down the expression:
we can see that this expression is one of the form 
which is the general expression of a difference of squares.
To be more specific and to see why we say this, let's make 
and 
Now, if we substitute this in the general formula, we get:
Thus, this expression is a difference of squares.
