Answer:
3/13
Step-by-step explanation:
You could use math for this or count and save yourself time. There are 12 cards in between 5-9 in the deck. 12/52 simplified is 3/13.
Go up across 18 and down 12
.125 or 1/8
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Total of the 5 assignments = 90 + 95 + 85 + 80 + 97 = 447
If he wants an average of 90% for 6 assignments,
he needs a total score of 90 x 6 = 540
To achieve the average score of 90%,
he needs to score 540 - 447 for his 6th assignment.
540 - 447 = 93%
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Answer: He must score 93% for the next assignment.
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