Answer:
Step-by-step explanation:
Let the total points be x
<u>Mark earned 90% of x which is 108 points:</u>
- 0.9x = 108
- x = 108/0.9
- x = 120
Total points were 120
Answer: He did make an error. He should have done 4x -1x and gotten 3x
Step-by-step explanation:
The least common multiple of 10, 25 and 30 is 150.
Hope this helps ! :)
1/16 You need to multiply 2x2x2x2 since all the coins are both two sided
One way to solve this problem would be to find two points on the the line and subtract the y-values from each other (y-y/x-x). Then subtract the x-values from each other. Finally you should have this: y/x as your answer. It may be a fraction, but you also may be able to simplify it into a whole number. This is just how I solve these types of problems in class.
