Let

the cost of a DVD
Let

the cost of a CD
We have

and

We can replace

with

in the second equation and get



Let p represent the number of people that signed up for programming class.
Math class = 9p
Total students = 9p + p = 10p
We also know that 45 students are wanted in each class, therefore there are 45*2=90 total students.
Now:
10p = 90
p = 9
45 - 9 = 36 students that needed to be moved.
The economic cost to society each year from crashes and injuries on U.S. highways is <u>242 billion dollars</u>. Approximately, this may be about $784 per crash.
Answer
C. 242 Billion Dollars
Answer:
"Fixed ratio" is the appropriate answer.
Explanation:
- A strengthening timetable, during which an answer or reaction is only strengthened after yet another given reaction can be determined, could be determined as a fixed ratio schedule.
- The particular topic gives a variety of questionnaires/solutions and therefore is subsequently rewarded by the educator or coach.
Thus the above is the correct answer.
by not putting harmful chemicals in the air
hope this helps:)sorry if it doesnt