Answer:
They sold 120 milkshakes that day
Step-by-step explanation:
We can set up a proportion
![\frac{48}{m} =\frac{2}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B48%7D%7Bm%7D%20%3D%5Cfrac%7B2%7D%7B5%7D)
![48*5=2m\\ 2m = 240\\m = 120\\](https://tex.z-dn.net/?f=48%2A5%3D2m%5C%5C%202m%20%3D%20240%5C%5Cm%20%20%3D%20120%5C%5C)
Note: If you have some value,
, and it is
of the total amount, you can find the value by doing the equation ![\frac{v}{x}*100](https://tex.z-dn.net/?f=%5Cfrac%7Bv%7D%7Bx%7D%2A100)
Answer:
It helps you know if the answer is reasonable because when you do the work and get your answer, you can check if it is close to your estimate, and if it is, it is most likely correct. On the other hand if it is not close to the estimate it is most likely wrong, unless you estimated incorrectly.
Step-by-step explanation: