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 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
the portion of books in the library that are how-to books on carpentry
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
Applications of Multiplying Rational Numbers Quick Check
2 of 52 of 5 Items
Question
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
310
Start Fraction 3 over 10 End Fraction
35
To find the fraction of apples picked that were sold as fresh fruit, we need to calculate the number of apples that were sold as fresh fruit over the total number of apples picked.
If Sara discarded 110 of the apples, then the remaining number of apples is 52 - 110 = -58, which doesn't make sense since it cannot be negative.
Therefore, there is not enough information to determine the fraction of apples picked that were sold as fresh fruit.
The town of Oak Manor measures 3.8 miles by 4.2 miles. Solve for the total area.(1 point)
Responses
8 mi2
8 mi squared
15.96 mi
15.96 mi
16 mi2
16 mi squared
15.96 mi2
To find the total area, we need to multiply the length and width of the town.
Total area = 3.8 miles × 4.2 miles = 15.96 square miles.
Therefore, the correct answer is 15.96 mi2.
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
−145.8 ft.
negative 145 point 8 ft.
−64.8
ft.
negative 64 point 8 ft.
−32.4
ft.
negative 32 point 4 ft.
−48.5
ft.
negative 48 point 5 ft.
To find the diver's elevation when he is 23% of the way down, we need to calculate 23% of 97.2 feet and subtract it from the surface-level elevation.
23% of 97.2 feet = 0.23 × 97.2 feet = 22.356 feet
The diver's elevation when he is 23% of the way down is 97.2 feet - 22.356 feet = 74.844 feet.
Therefore, none of the given responses are correct.
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 2/3 of the way down? (1 point)
Responses
−145.8 ft.
negative 145 point 8 ft.
−64.8
ft.
negative 64 point 8 ft.
−32.4
ft.
negative 32 point 4 ft.
−48.5
ft.
negative 48 point 5 ft.
To find the diver's elevation when he is 2/3 of the way down, we need to calculate 2/3 of 97.2 feet and subtract it from the surface-level elevation.
2/3 of 97.2 feet = (2/3) * 97.2 feet = 64.8 feet.
The diver's elevation when he is 2/3 of the way down is 97.2 feet - 64.8 feet = 32.4 feet.
Therefore, the correct response is -32.4 ft. or negative 32 point 4 ft.
A basketball player is 623 feet tall. His infant son is 14 as tall. How tall is his son?(1 point)
Responses
2212 ft.
2 Start Fraction 2 over 12 End Fraction ft.
223 ft.
2 Start Fraction 2 over 3 End Fraction ft.
123 ft.
1 Start Fraction 2 over 3 End Fraction ft.
112 ft.