Applications of Multiplying Rational Numbers Quick Check
1 of 51 of 5 Items
Question
How-to books make up 0.3 of the books in the school library. Of these, 0.2 deal with carpentry and 0.4 deal with electronics.
0.3×0.4=0.12
Interpret what the answer 0.12 represents in this equation above.
(1 point)
Responses
the portion of books in the library that are how-to books
the portion of books in the library that are how-to books
the portion of the books in the library that are how-to books on electronics
the portion of the books in the library that are how-to books on electronics
the portion of the how-to books that are about either carpentry or electronics
the portion of the how-to books that are about either carpentry or electronics
the portion of books in the library that are how-to books on carpentry
None of the above responses are correct.
The correct interpretation of the answer 0.12 in the equation 0.3 × 0.4 = 0.12 is:
The portion of the how-to books in the school library that deal with both carpentry and electronics.
The correct response is:
Start Fraction 4 over 5 End Fraction
This fraction represents the portion of the total apples picked that were sold as fresh fruit.
The correct response is:
15.96 mi2 or 15.96 mi squared.
This represents the total area of Oak Manor in square miles.
The correct response is:
15.96 mi2 or 15.96 mi squared.
The correct response is:
−64.8 ft.
The correct response is:
112 ft.
Sara discarded 110 of the apples she picked as defective. Of the apples remaining, 300 were made into cider. The rest were sold as fresh fruit. What fraction of the total apples picked were sold as fresh fruit?(1 point)
Responses
45
Start Fraction 4 over 5 End Fraction
not enough information
not enough information
35
Start Fraction 3 over 5 End Fraction
310
The town of Oak Manor measures 3.8 miles by 4.2 miles. Solve for the total area.(1 point)
Responses
16 mi2
16 mi squared
15.96 mi2
15.96 mi squared
8 mi2
8 mi squared
15.96 mi
witch one
Applications of Multiplying Rational Numbers Quick Check
4 of 54 of 5 Items
Question
A diver searches for a sunken treasure that is 97.2
feet below the surface. What is the diver's elevation when he is 23 of the way down? (1 point)
Responses
−48.5
ft.
negative 48 point 5 ft.
−32.4
ft.
negative 32 point 4 ft.
−64.8
ft.
negative 64 point 8 ft.
−145.8 ft.