Which unit rate is the lowest price per ounce?

Choice A: 25 ounces of potato chips for $3.49
Choice B: 45 ounces of potato chips for $4.79

Question

Which unit rate is the lowest price per ounce?

Choice A: 25 ounces of potato chips for $3.49
Choice B: 45 ounces of potato chips for $4.79

anonymous · Answer

@phi

phi · Answer

price per ounce
translate that to dollars per ounce or
$$ \frac{dollars}{ounce} $$
so I would do the division for both cases and see which gives the lowest dollars (meaning the cheapest) per ounce

anonymous · Answer

Choice A: 0.13
Choice B: 0.10

anonymous · Answer

right?

anonymous · Answer

@phi

anonymous · Answer

help!

texaschic101 · Answer

make sure you round them correctly
3.49/25 = 0.1396 rounds to 0.14 (14 cents)
4.79/45 = 0.1064 rounds to 0.11 (11 cents)
now which one is the cheapest ?

anonymous · Answer

oh, then the cheapest is choice B, right?

texaschic101 · Answer

correct...it is the cheapest per ounce

anonymous · Answer

i have one more question. can you help?

texaschic101 · Answer

I can try...can't make no promises...lol