Answer:
Step-by-step explanation:
The GCF is the highest number that divides into two or more numbers. For example, the GCF between 24 and 36 is 12 because it is the largest number that both use when being divided or multiplied.
The LCM contrarily is the smallest number that divides into two or more numbers. Following the same example, the LCM between 24 and 36 is 2 because it's the smallest number used when multiplying or dividing to get to the two numbers.
Answer:
I think the answer is 0.2683281573
Let x = number of questions worth 2 and y be those worth 5.
so we have the system:-
x + y = 50
2x + 5y = 145
multiply first equation by -2:-
-2x - 2y = -100
Add this to the second equation:-
3y = 145-100
3y = 45
y = 15
and x = 50-15 = 35
Answer:- there are 35 questions worth 2 points and 15 worth 5 points.