Answer:
2.5
Step-by-step explanation:
You can do rise over run and you get 25/10 which is 2.5 or 5/2. So you are correct
Use the formula for area of a circle,

and they give an approximation so use that for pi
Answer:
- True
- True
- False
- True
Step-by-step explanation:
- Subtracting the equation will get rid of y variable therefore it's a correct and logical first step to solve the system
- The solution is indeed (-3, -3) as if we substitute these values in both equation, the equation will be correct and valid.
(Correct)
(Correct)
- We have already determined the logical first step. Multiply by -2 will not get rid of any of the variables. Therefore, this is false.
- The solution can be written as one value since x = y = -3. Therefore, this statement is true.
If you would like to know how many students were in each class, you can calculate this using the following steps:
4 buses<span> * x + 8 students = 220 students</span>
4 * x + 8 = 220
4 * x = 220 - 8
4 * x = 212 /4
x = 212 / 4
x = 53
<span>53 students were in each bus.</span>