Answer:
12 mathletes is needed to solve 30 problems in 5 minutes
Step-by-step explanation:
8 athletes can solve 20 problems in 10 minutes
30-20=10
now we need 10 more problems to be solved so
20/2=10. 8/2=4 so we need more 4 mathletes to solve all the problems
What be more specificx or take a picture
Answer:

Step-by-step explanation:
The given parabola has equation

We rewrite in standard form to obtain:


Split the middle terms to get:

Factor by grouping:



Answer:
-3 is the answer because if we divide 15 by 5 we get 3 . So it is same only the question is -15 divide by 5 so the answer is -3
Answer:
64
Step-by-step explanation:
If the number is x we have the equation:-
3x + 5 = 197
Subtract 5 from both sides:-
3x = 192
x = 192/3
x = 64