1. In France, grapes are 1.73 Euros per kilogram. What is the cost of grapes in

Question

1. In France, grapes are 1.73 Euros per kilogram. What is the cost of grapes in dollars per pound, if the exchange rate is 1.33 dollars per Euro?

2. Wine is 15 % (by volume) alcohol. How many milliliters of alcohol are in a 0.750-L bottle of wine? Express your answer to two significant figures.

3. Blueberry high-fiber muffins contain 56 % dietary fiber. If a package with a net weight of 12 oz contains six muffins, how many grams of fiber are in each muffin? Express your answer to two significant figures.

4. A jar of crunchy peanut butter contains 1.41 kg of peanut butter. If you use 6.0 % of the peanut butter for a sandwich, how many ounces of peanut butter did you take out of the container? Express your answer to two significant figures.

5. In a candy factory, the nutty chocolate bars contain 20.5 % pecans by mass. If 3.0 kg of pecans were used for candy last Tuesday, how many pounds of nutty chocolate bars were made? Express your answer to two significant figures.

6. For the following problems, give answers in the standard notation with the correct number of significant figures without any commas or spaces:

- 44.9×0.036

- 0.00278×7

- 39.30/1.17

- (0.3965)(27) / 1.68

Explanation / Answer

Ans 1 :

1 euro = 1.33 dollars

So 1.73 Euros will be equal to : 1.73 x 1.33 = 2.3009 dollars

Now 1 kilogram is equal to 2.20462 pounds

So the cost of one pound of grapes in dollars will be :

= 2.3009 / 2.20462

= 1.04 dollars per pound.

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