Explanation for Question 31 From the Math (Calc) Section on the 2019 May Sat
Question 31 asks pure bees. 2 Wax has a density of 0.555 ounces per cubic inch 3 in online company sells pure beeswax at a price of $8 per ounce. 4 What is the selling price in dollars per cubic inch for pure beeswax purchased 5 from this company? So we know that the beeswax 6 goes for $8 per ounce. So I'm going to start by writing that as 7 a fraction, $8 over 8 one ounce. We also know 9 that 0.55 ounces or that these wax has a density 10 of 0.555 ounces per cubic inch. 11 So we're going to multiply this original fraction by our new fraction. 12 So your 0.55, five ounces over 13 one cubic inch. So once we do 14 this, the ounces units cancel you multiply eight 15 tons 0.555. 16 And our answer is $4.44 17 per cubic inch. And that's the correct answer.