Let's take a look at each term separately.
15a^2b^2:
15 has factors 1, 3, 5, 15
a x a
b x b
-24ab
-24 has factors 1, 2, 3, 4, 6, 8, 12, 24
a
b
Now, we can see what each of these terms has in common. Both have a 3 in their factor lists, as well as one a and one b.
Therefore, the greatest common factor is 3ab.
Hope this helps!! :)
I think it is the first one
Answer:
At least two ways
Step-by-step explanation:
Vertically and by seeking intersections
Answer:
Step-by-step explanation:
First you have to organize your information:
3 Teach.= 70 children
There are 14700 children 210 times 70.
You multiply 3*210 =70*210 because if you multiple one side you have to do the other to.
This equals 630= 14700. They need 630 teachers.
They have 612 so you only have to subtract 630 -612 =18
They need 18 teachers more.
Answer:
12 3/8
Step-by-step explanation:
