Note that
25 + 36 = 61.
The partial sums of 61 are
1, 3, 6, 10, 15, 21, 28, 36, 45, 55.
These numbers arise in partial sums of 61.
4 = 1 + 3
6 is a partial sum
11 = 1 +10
31 = 10 + 21
36 is a partial sum
41 cannot be obtained from partial sums.
56 = 28 + 28
61 is a partial sum
Test the given answers.
A) 11,31,61 qualify as partial sums. It is correct.
B) 11,31,61 qualify as partial sums. It is correct.
C) 11 and 61 qualify as partial sums, but 41 does not. It is incorrect.
D) 36,56,61 qualify as partial sums. It is correct.
Answer:
C) is incorrect.
Answer:20 students chose option 1
Step-by-step explanation:
20 students chose option 1
answer
9514 1404 393
Answer:
276/47
Step-by-step explanation:
The fractions can be given a common denominator by multiplying the top fraction by 6/6. Then the common denominators can be cancelled.
Answer:
the coefficient Is the number multiplied by a variable
The probability to pull out a blue marble is 2/5 and the probability to pull out a second green marble is 2/9 since there are now 9 marbles in the bag