Explanation for Question 16 From the Math (No Calc) Section on the Official Sat Practice Test 4
So here in number 16, we're given a triangle and we're trying to solve 2 for the height of the shampoo. Right. 3 And we know that the shampoo is associated with the three X. 4 So if we can just figure out what X is, we can figure out 5 what the shampoo is. So the only information that we have here is the 6 total height of 18, and then we're given these side lengths. 7 And so I think possibly one tricky thing about this problem is that it 8 appears that the side length or the horizontal and that the height is the 9 18, which is vertical. But in this case, 10 in order to solve this question, we actually need to take all of these 11 side links, add them together and set them equal to 12 18. And so I think that's the most difficult part of this problem because 13 the 18 appears to be going straight up. 14 Um, and so, you know, 15 that can be really misleading, but in all honesty, 16 there's no other information that we have. The only possible thing that you can 17 do is take these and set them equal to 18. 18 Um, and when you do that and you combine like terms, you get the 19 six X is equal to 18, so X is equal to three, 20 right? And here we're doing three times X. 21 So three times three, which is nine. 22 And that's why the height of our shampoo bottle is going to be nine.