Ok, so the first thing we need to do is subtract 50% of 49.98. We know 50% of 49.98 is 24.99, so lets subtract. 49.98 - 24.99 = 24.99. Then we need to take another $10 off the price. That leaves the final price to be $14.99
The number of students would not change between before the test and after the test. 3+8 and 4+7 both = 11 so finding out how many students would equal one ratio can then be used to find how many equal 3 and 8.
If 92 students are equal to 4 in the ratio, then 1 in the ratio is worth 23 students. This is important as then when you times 23 by 7 you find out how many students there are in the regular maths class, 161 students. Plussing these two together gives you a total of 253 students.
Using this 253 you can divide it by 11 to find out how much 1 number would be in the ratio, it equals 23. Using this you can then times 23 by both 3 and 8 to find the original class sizes, 3x23 = 69, and 23x8 = 184.
Making the origional class size of the advaced class 69 studnets, and the regular maths class size 184.
There's this app where you get a picture of the math problem and it gives you the answer
Answer: 32
Step-by-step explanation: the big number is 64 and the smallest number is 32. 64-32=32
