Answer: 3x-3x=2-2
Also, it is Infinite Solutions not No Solution. No solution is like 4 = 0. Infinite Solutions are even.
Step-by-step explanation:
3x-3x=2-2
0 = 0
All the numbers can be turned into percentages and decimals
Answer:
The combined average is 94%
Step-by-step explanation:
for first period, number of students =40
average =96%
for second period, no of students =20
average =90%
but
let =sum of students for the first period
=sum of students for the second period
for first period;
for second period,
therefore the combined average =
that is
so combined average is 94%
In 2005 there were 9million bicycles in Beijing