Answer:
0,3
Step-by-step explanation:
The price of the shoe pair in us dollars will be $50. The correct option is C.
<h3>What is unit conversion?</h3>
Multiplication or division by a numerical factor, selection of the correct number of significant figures, and unit conversion are all steps in a multi-step procedure.
It is given that shoes sell for 400 Hong Kong dollars in Hong Kong and the exchange rate is $0.125 per Hong Kong dollar. The cost of the same shoes in the united states will be calculated as below:-
Cost of shoes in the US = Cost in Hongkong x Exchange rate
Cost of shoes in the US = 400 x 0.125
Cost of shoes in the US = $50
Therefore, the price of the shoe pair in us dollars will be $50. The correct option is C.
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Answer:
D) w<3.3
Step-by-step explanation:
All of the books are less than 3.3lbs, therefore the inequality fits the category.
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Answer: the speed of the plane in still air is 135 km/h
the speed of the wind is 23 km/h
Step-by-step explanation:
Let x represent the speed of the plane in still air.
Let y represent the speed of the wind.
Flying to England with a tailwind a plane averaged 158km/h. This means that the total speed of the plane is (x + y) km/h. Therefore,
x + y = 158 - - - - - - - - - - - - - -1
On the return trip, the plane only averaged 112 km/h while flying back in the same wind. This means that the total speed of the plane is (x - y) km/h. Therefore,
x - y = 112 - - - - - - - - - - - - - -2
Adding equation 1 to equation 2, it becomes
2x = 270
x = 270/2 = 135 km/h
Substituting x = 135 into equation 2, it becomes
135 - y = 112
y = 135 - 112
y = 23 km/h
