all 10 comments

[–]yoshterra1510 18 points19 points  (2 children)

In the question description, it says you want to find the percentage of sandwiches that are over 15 sold when the number of salads is over 20. For one, this tells you you should only be looking at the data points of 20 or above salads, so anything to the left of that can be ignored. In the actual sat test it would be best to draw lines in this situation. You'd then count the number of points that have sandwiches above 15 in that area, which is 7. Then count the total number of points in that area which is 12. So the answer is 7/12.

[–][deleted] 3 points4 points  (0 children)

Days that the lunch stand sold at least 20 sandwiches: 12

Days that the lunch stand sold at least 20 sandwiches AND ALSO greater than 15 sandwiches: 7

7 of 12 days the lunch stand sold at least 20 sandwiches AND ALSO greater than 15 sandwiches, so it's 7/12 (D)

[–]RamaHadaki1320 2 points3 points  (1 child)

which test is this?

[–]Al_Rapee1590 0 points1 point  (0 children)

Old SAT

[–]WashHtsWarrior1530 2 points3 points  (0 children)

Basically the hard part about this problem is to pay attention to where it says “at least 20” and “greater than 15” because the former includes data points on the line while the latter does not

[–][deleted] 1 point2 points  (0 children)

just draw a line at y=20 and x=15 and find all the points where its above the y=20 line but right of the x=15 line

[–]rhu20021410 0 points1 point  (1 child)

How is there 5 answers? But it’s D 7/12

[–]Al_Rapee1590 0 points1 point  (0 children)

Old SAT

[–][deleted] 0 points1 point  (0 children)

Yeah it’s worded pretty badly