This will be a LCM because there is no GCF between the 5th lockers and 7th lockers.
Answer:
y > -3/4x +3
Step-by-step explanation:
Add 4y+12, then divide by 4.
-3x +12 < 4y
-3/4x + 3 < y
The solution is ...
y > -3/4x +3
You would need exactly 9 correct questions to get a 50%.
We can find this by multiplying the total number of questions by the percentage we are looking for.
18*50% = 9
Factors of 15 are 1,3,5 and 15
Factors of 45 are 1,3,5,9,15,45
Factors of 90 are 1,2,3,5,6,9,10,15,18, 30,45,90
Now just check the numbers between those and you should have your answer