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zalisa [80]
2 years ago
7

1. One box of cereal is 16 ounces and costs $3. A smaller box of The same cereal is 11.5 ounces and costs $2. Which box of cerea

l is the better but? Explain.
2. I'm an N-guage model train set, a tank car is 3.75 inches long. The actual tank car is 50 feet long. What is the ratio of the length of the actual tank car to the length of the model tank car?
3. 9 km/1 hour = ?m/ 1 second
Mathematics
2 answers:
pav-90 [236]2 years ago
6 0
1. The 1.5 oz box for $2 is best because if you make $3 into $6 then the box is 32 oz. And if you change $2 to $6, the box is 34..5 oz which is better because its bigger.
Elena-2011 [213]2 years ago
4 0
1. it would be smarter to but the 16 oz bag because your getting more out of your money with the 11 oz bag you would be paying 5.75 per oz but with the 16 oz bag you are paying 5.30 per oz so it is a better choice to choose the 16 oz bag

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natali 33 [55]

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0.3968 = 39.68% probability this shipment passes inspection.

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The parts are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

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P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

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4 defective means that k = 4

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0.3968 = 39.68% probability this shipment passes inspection.

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2 years ago
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