2 bags, because when you add 5/8 and 1 3/8 you get 1 8/8 which is really 2
The quadratic formula is 
So the solution for k is 16.
Hope that helps!
Answer:
f=-21
Step-by-step explanation:
-21+20=-1
f has to be a negative number as the answer is negative and -21 is the only plug in that would make sence as the answer is negative one.
Answer:
9.5
Step-by-step explanation:
You would need to do 9.5 assignments a day if you want to destribute the work load evenly among the 6 days.
57/6 = 9.5
Hope this helps
Because the average is 7.7, his total points are equal to 7.7*10=77.
Because 7*10<77<8*10, Luke cannot have scored 8 10s. We now seek to prove that he can score 7 tens.
This leaves him with three tests left, that sum to 7 marks. There are clearly many ways to arrange this - for example, 2, 3, and 3 on the first three tests, then ten on all seven other tests. As this shows that 7 10s works and we have proven that 8 10s does not work, 7 is the maximum amount of 10s Luke could have scored.
