Answer:
A, C, D
Step-by-step explanation:
Solve all equations:
A. 
This is incorrect equality, so the equation has no solutions.
B. 
This is correct equality, so the equation has infinitely many solutions.
C. 
This is incorrect equality, so the equation has no solutions.
D. 
This is incorrect equality, so the equation has no solutions.
The largest squime is 25973641
Since the minimum is 72 the every grade must be equal or bigger than it
also 95 is the maximum therefore every grade must be equal or less than it
where is any quiz grade of any student in the class
Answer:
a=9
Step-by-step explanation:
To solve this proportion, we have to get the variable, a, by itself.
First, cross multiply.
6/a=18/27
Multiply the denominator of the first fraction by the numerator of the second, and the numerator of the second by the denominator of the first.
a*18=6*27
18a=162
Now, 18 and a are being multiplied. In order to get a by itself, perform the opposite of what is being done. They are being multiplied, so the opposite would be division. Divide both sides by 18.
18a/18=162/18
a=162/18
a=9
So, the proportion, with 9 substituted in for a, will be:
6/9=18/27
