Charles has been assigned several chores around the house he washed the supper dishes every fifth day, he takes out the trash ev
ery other day, and he vacuumes the house every seven days. How often does he have to do all three things on the same day?
1 answer:
This question is about the GREATEST COMMON FACTOR.
Supper Dishes: 5 10 15 20 25 30 35
Trash: 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35
Vacuums the House: 7 14 21 28 35 42
He will have to do all three chores on the same day every 35 day.
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If 9 friends come then they all get 4 water balloons and 9 beads (36/9=4, 81/9=9)
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➷ base x height / 2 = area
6 x 7 / 2 = 21
answer is 21 units
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If you use 0.05x+3 (x equal to the number of minutes) it would be 0.05(20) + 3 = 4. Pretty sure this is correct, but you might want to check it.