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13 10 17 15 21
13 - 10 = -3
10 - 17 = +7
17 - 15 = -2
15 - 21 = +6
The negative numbers alternate with the positive numbers
The negative numbers are augmented by +1 each step
The positive numbers are diminished by -1 each sterp
So the next step from 21 is a negative and should be -2 increased by +1 to -1 giving a new value of 20
Then the next step is a positive and should be +6 decreased by -1 to +5 giving 25
13 - 10 = -3
10 - 17 = +7
17 - 15 = -2
15 - 21 = +6
21 - 20 = -1
20 - 25 = +5
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What sum of two numbers is 7 and their difference is 13 Find the numbers?
10 + (-3) = 7 10 - (-3) = 13 10 and -3
Find two numbers whose product is 30 and whose sum is 13?
10 and 3
What is the median in math?
The middle number (in a sorted list of numbers).To find the Median, place the numbers you are given in value order and find the middle number.Example: find the Median of {13, 23, 11, 16, 15, 10, 26}.Put them in order: {10, 11, 13, 15, 16, 23, 26}The middle number is 15, so the median is 15.(If there are two middle numbers, you average them.
What two numbers have a difference of 3 and a product of 130?
10 and 13 have a difference of 3 and a product of 130. 13 - 10 = 3 13 x 10 = 130
What is the sum of 2 numbers is 13 and their difference is 7?
3 and 10 The sum of 3 and 10 is 13 The difference of 3 and 10 is 7 Using algebraic notation, if the two numbers are x and y: x + y = 13 x - y = 7 If you add these two equations you get 2x = 20 so x = 10 Substituting this back into the original equations you find that y must then be 3
