Answer:
20 students
Step-by-step explanation:
In order to find the answer, we must find 2/3 of 30 students.
2/3 of 30 students can be found by multiplying the two numbers together.
2/3 * 30 is equal to 2/3 * 30/1
2/3 * 30/1 is 60/3
60/3 is equal to 20
20 students brought their attendance contracts back on Tuesday.
Answer:
it is 6
Step-by-step explanation:
Let's say she invested "a" amount at 7% and "b" amount at 9%
we know, whatever "a" and "b" are, they add up to 15000, thus
a + b = 15000
how much is 7% of a? well, (7/100) * a, or 0.07a
how much is 9% of b? well, (9/100) * b, or 0.09b
we know the sum of the interest for both is 1230, thus
0.07a + 0.09b = 1230
thus
solve for "a", to see how much was invested at 7%
what about "b"? well, b = 15000 - a
Answer:
Step-by-step explanation:
4 mins to clear the table
He eats existing 12 muffins is 2 mins by then 8 muffins are baked, another minute to eat 6 muffins and by then there are 4 more muffins totalling to 6. He finishes that in another min (4 mins) and leaves but aunt placed 4 more on the table after he left.