# Posts by ExplanationCentral

Total # Posts: 7

**math**

The mode is the number that occurs the most times. In game 3, the mode is 122 because it occurs the most times.

*April 9, 2012*

**MATHEMATICS**

The deviation is the difference between a value and the mean. So the deviations are: (290-280) (270-280) (250-280) (300-280) (290-280) This gives you: 10 -10 -30 20 10 The average is the sum of the numbers divided by the number of numbers (5). so that would be 0/5 = 0.

*April 9, 2012*

**Math**

Non red marbles are 12 + 5 = 17. So the ratio is 5/17.

*April 9, 2012*

**algebra**

20 = 703*100/h^2. 20 = 70300/h^2 20*h^2 = 70300 h = (3515)^(1/2)

*April 9, 2012*

**math**

3+6.25 = 9.25 is the amount per hour you will earn at the new job So the difference between incomes of the two jobs is: 9.25*10 - 8.55*10 = 7

*April 9, 2012*

**Algebra 2**

The slope of a line is the difference of the y values divided by the difference of the x values. The slope = (1/2 - 1/4) / (3/4 - 1/8) which equals 2/5 or 0.4

*April 9, 2012*

**math**

Subtract 6 from 13 and from 33. Then add 6 back just once. 7 + 27 + 6 = 40 students are taking either one or both of the subjects. So 46 - 40 = 6 students are taking neither of the subjects.

*May 21, 2010*

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