Answer:
what are your choices for your answers
Step-by-step explanation:
Given:
The inequality is:
![-20t>-80](https://tex.z-dn.net/?f=-20t%3E-80)
To find:
The solution for the given inequality and graph of it.
Solution:
We have,
![-20t>-80](https://tex.z-dn.net/?f=-20t%3E-80)
Divide both sides by -20 and change the sign of inequality because inequality is divided by a negative number.
![\dfrac{-20t}{-20}](https://tex.z-dn.net/?f=%5Cdfrac%7B-20t%7D%7B-20%7D%3C%5Cdfrac%7B-80%7D%7B-20%7D)
![t](https://tex.z-dn.net/?f=t%3C4)
Therefore, the solution for the given inequality is
.
All the value less than 4 are in the solution set. It means all the values on the left side of 4 are in the solution set.
Since 4 is not included in the solution set, therefore there is an open circle at 4.
The graph for the given inequality is shown below:
10 blocks = 6 min
30 blocks = 18 min
You can answer this because you know that 10 x 3 is 30, so if if the number of blocks tripled then the amount of time should triple as well because he's running at the same rate.