Answer:
10 SENIORS
Step-by-step explanation:
x=# of seniors
y=# of juniors
x+y=23, x=2y-7
- plug the value of x in the second equation into the first
- (2y-7)+y=23
- Remove parentheses
- 2y-7+y=23
- Combine like terms
- 3y-7=23
- Add 7 to BOTH sides
- 3y=30
- divide BOTH sides by 3
- 3y/3=30/3
- y=10
- There are 10 juniors in the class
- FINAL STEPS
- Plug y (which is 10) into the first equation
- x+y=23
- x+10=23
- subtract 10 from BOTH sides
- x=13
- Since X equals the number of seniors, there are 10 seniors in the class
Answer:
The answer can be find out by doing the following steps;
Step-by-step explanation:
In this case you have:

An hour has sixty minutes.

<span>You must multiply by this equality.
</span>

<span>You must multiply by 60 and you can convert miles per minute to miles per hour.</span>
So assuming pi represents 1 term or the ratio of the diameter to the circumfernce and B5 means B times 5 and not B^5
65pi=B5
divide both sides by 5
(65pi)/5=B
simplify
13pi=B