The relation between the number of instrument boxes(n), and the price(p), is given by the equation p = 9n. Which of the following gives the missing values in the table?
A
60 and 70
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B
55 and 65
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C
80 and 90
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D
63 and 81
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Solution
The correct option is D 63 and 81 Given equation is p = 9n
n = number of insturment boxes
p = price of instrument boxes
When n = 7, p = 9(7) = $63
When n = 9, p = 9(9) = $81
Hence, the missing values in the table are 63 and 81