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Here are some groups to which some of the numbers belong.
Prime numbers: 2, 3, 5, and 7.
Composite numbers: 4, 9, 10, 15, 21, 25, 28, and 49.
Even numbers: 2, 4, 10, and 28.
Odd numbers: 3, 5, 7, 9, 15, 21, 25, and 49.
Triangular numbers: 3 (or 1+2), 10 (or 1+2+3+4), 15 (or 1+2+3+4+5), 21 (or 1+2+3+4+5+6), and 28 (or 1+2+3+4+5+6+7)
Square numbers: 4 (or 22), 9 (or 32), 25 (or 52), and 49 (or 72).
Perfect number: 28 (sum of its proper divisors 1 + 2 + 4 + 7 + 14 is itself).
Factorial numbers: 2 (or 2!) and 6 (or 3!).
What else can I help you with?
What number increased by -10 is 5?
15. 5 - -10 = 5 + 10 = 15 → 15 + -10 = 15 - 10 = 5
What number must be subtracted from -15 to get 10?
It is -25 because -15--25 = 10
What is a number greater than 10 and a factor of 30?
15 is a number greater than 10 and a factor of 30.
What number is 10 percent of 150?
10% of 150 = 15
If you added the number of sides in a pentagon to the number of sides in a decagon what number would you get?
You would get the number 15 because a pentagon has 5 sides and a decagon has 10 sides. 10+5=15. Your answer would be 15 sides.
How can 30 students be divided into groups of the same size?
To divide 30 students into groups of the same size, you would need to find a common factor of 30 that represents the desired group size. The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. Therefore, you could divide the 30 students into groups of 2, 3, 5, 6, 10, 15, or 30 students each. Each group would have an equal number of students, ensuring fairness in the division.
Which number is the next logical number in the following sequence of numbers 5 10 15 10?
5+5 = 10 10+5 = 15 15-5 = 15 10+5 = 15
What number increased by -10 is 5?
15. 5 - -10 = 5 + 10 = 15 → 15 + -10 = 15 - 10 = 5
How do you get one tenth?
If you want to find one tenth of a number, divide it by 10. For example, one tenth of 50 is 5. I teach my students about fraction this way. When you consider one tenth of something, 1/10, think of the denominator of the fraction as the number of equal groups you have to divide a particular number into. Then think of the numerator of the fraction as the number of those equal groups you are counting up. Another example: to find 3/10 of 50, divide 50 into ten equal groups of 5 each. Then count three of them: 5 + 5 + 5 = 15. 3/10 of 50 is 15.
What number is next 5 10 15 10?
The Next NumberThe next number is 25 if you use the following pattern: 5, (the number 10), 15 (the first number +10), (the number 10), and the next number is the third number +10 or 25.or you could think of it this way:5, 10 (+5), 15 (+5), -5 (10)The pattern is +5, +5, -5, so the next number would be 15, the next 20, and the next 15.
10 plus the quotient of a number and 15?
10 + 15a * * * * * No! It is 10 + n/15
Which number is next in the senquence 5 10 15 10?
5 10 15 10 5
What is the difference between 10 and -15?
10 is a positive number, -15 is a negative number. Also... The difference is 25, -15 is 25 less than 10.
What number is 10 times greater than 1.5?
To find a number that is 10 times greater than 1.5, you would multiply 1.5 by 10. This calculation would result in 15. Therefore, 15 is the number that is 10 times greater than 1.5.
If 10 percent of a number is 100 what is 15 percent of that number?
100 x 100/10 x 15/100 = 150Therefore, 15 percent of that number would be 150.
What is the average is 10 and the number is 15?
If the average is 10 then 15 is 5 above average.
What number must be subtracted from -15 to get 10?
It is -25 because -15--25 = 10
