Which unit rate is the lowest price per ounce? (5 points) Choice A: 5 ounces of raisins for $1.49 Choice B: 12 ounces of raisins
2 answers:
Answer:
Choice A
Step-by-step explanation:
Choice A) 5 ounces of raisins for $1.49
Cost of 5 ounces = $1.49
Cost of 1 ounce =
=
So, unit rate of choice A is $0.298
Choice B) 12 ounces of raisins for $3.69
Cost of 12 ounces of raisins = $3.69
Cost of 1 ounce of raisins =
=
So, unit rate of choice B is $0.307
Thus unit rate of choice A is the lowest price per ounce
Hence Choice A is the answer.
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But first, we have to find the height of this pyramid. The volume formula for a square pyramid is . Since we know its a square pyramid, the length and width are going to be the same (12 ft), and we know that the volume is 432 ft^3. Using this info, we can solve for the height:
So now we can use the pythagorean theorem (remember to split the 12 by 2, since the right triangle has only half the length of the base). Our equation will be solved as such:
In short, the slant height is 10.8 ft.
