Answer:
For this question, you need you use the unitary method or proportion. If you apply these ideas to it. You should be able to do this question. Here's my working:
Step-by-step explanation:
25ounces = $3.49
**You need to find what's the price of one ounce**
So assume it like this:
1 ounce = $X
To solve for X, you figure out how did 25 became 1. In this case, it has been divided by 25. So you do the same thing on the other side: Which is $3.49 ÷25 = 0.1396 (Price per ounce for choice A)
Choice B workings:
You apply the same method, so it's 4.79 ÷ 45 = 0.1064444444444 (Price per ounce for Choice B)
So in conclusion, Choice B is cheaper.
**Please note that I'm not a maths teacher, please double check your answer, my answer might be incorrect**
Hope it helps!
Cheers! :)
