Explanation for Question 7 From the Math (No Calc) Section on the Official Sat Practice Test 6
Question seven asks us a bricklayer, 2 uses the formula N equals seven L H to estimate the number of bricks 3 and needed to build a wall that is L feet long and H feet 4 high, which of the following correctly expresses owl in terms of N and H. 5 So for this one, let's rewrite out that formula that we're given. 6 Again, we have an equal seven L H and 7 all we're trying to do is reorder this so that we've got L on 8 one side and we have that equal to something else, 9 including, or in terms of those other variables. 10 All right. So to get L on its own, 11 we have to divide both sides by seven H 12 and you can see the thought will cancel out over here. 13 So we're left with N over seven H is equal to 14 L. So looking through our answer choices, 15 we're going to pick C.