16 2/5 -ounce package of medicated cough drops costs $0.99. What is the unit cost?
A. 0.08
B.0.50
C.0.76
D.0.06
no idea how to do these things....
i wasn't really taught how to do them...just i started getting these kinda questions..
unit cost is $/oz, right?
so, divide cost by weight
$0.99/(16 2/5 oz) = 0.99/16.4 = 0.06 $/oz
ok.. thanks..
now time to finish the rest of the test ;-;
To find the unit cost, you need to divide the total cost by the number of units. In this case, the total cost is $0.99 and the number of units is 16 2/5 (or 16.4).
To simplify the calculation, convert the mixed number 16 2/5 into a decimal. To do this, multiply the whole number (16) by the denominator (5), and then add the numerator (2). Divide the result by the denominator (5) to get the decimal representation of the mixed number:
16 * 5 + 2 = 82
82 / 5 = 16.4
Now we can find the unit cost by dividing the total cost ($0.99) by the number of units (16.4):
$0.99 / 16.4 ≈ $0.0604
The unit cost is approximately $0.0604, which is closest to option D: 0.06.