4(3n+7)=16
12n+28=16
12n=-12
n=-1
Answer:
B
Step-by-step explanation:
Example of Phase of matter that show how characteristics of matter find application in our daily life??
1 gallon of gas for William= 37.76 ÷ 16= 2.36 $
1 gallon of gas for Regina= 14.64 ÷ 6= 2.44 $
so william got a better deal per gallon.
Answer:
3*sqrt(3x)
--------------
2x
Step-by-step explanation:
To rationalize the denominator, we need to get rid of the square root. We need to multiply by sqrt(12x)/sqrt(12x)
9 sqrt(12x)
---------- * -----------
sqrt(12x) sqrt(12x)
9sqrt(12x)
-----------------
12x
We can cancel 3 in the top and bottom
3sqrt(12x)
---------------
4x
We also notice that 12 is made up of 4 and 3
3sqrt(4) sqrt(3x)
---------------
4x
3sqrt(4) sqrt(3x)
----------------------
4x
3*2sqrt(3x)
--------------
4x
We can cancel a 2 in the top and bottom
3*sqrt(3x)
--------------
2x
