Answer:
4 minutes per question
Step-by-step explanation:
3 hours = 180 mins
180/45 = 4
4 minutes per question
Here is the equation:
![\frac{x}{3} = 12 \rightarrow x \div 3 = 12](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B3%7D%20%3D%2012%20%5Crightarrow%20x%20%5Cdiv%203%20%3D%2012%20%20)
Switch the equation around:
![12 \times 3 = x](https://tex.z-dn.net/?f=%2012%20%5Ctimes%203%20%3D%20x%20)
When you switch it around, the sign changes. At first you were dividing, and now you're multiplying.
![12 \times 3 = 36 \\ x = 36](https://tex.z-dn.net/?f=%2012%20%5Ctimes%203%20%3D%2036%20%5C%5C%20x%20%3D%2036%20)
Answer:
4 weeks
Step-by-step explanation:
75-5*x=55
x=4 weeks
Answer:
D
Step-by-step explanation:
Both lines are not intersecting each other so that means they don't share a solution