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What is the percentage of 2 out of 8?
2/8 = 25% The easiest way I've found to do percents is cross multiplying: 2/8 = x/100 So to solve for x, multiply 2 times 100 (equals 200) and divide by 8 (equals 25). So 25/100 equals 25%. Works for anything... Another example: what is the percentage of 53 out of 976? 53/976 = x/100 So 53 times 100 (equals 5300) and divide 5300 by 976 (equals 5.43) or 5.43%.
Can you write four 9's in such a way that the total equals 100?
99+9/9
What is the difference between the values of y when x equals 99 and x equals 100?
There is no way to know unless you had an equation that gives the relationship between x and y. For example, if y=2x, then when x equals 99 or x equals 100, then the value of y has a difference of 2.
How do you solve for x when 40 divided by x times 100 times 0.25 plus 60 divided by x times 100 times 0.75 equals 50?
The following is based on the correct order of operations. If the way you phrased the question is not what you actually meant, please go back and edit the question and I'll be happy to answer the new version. (40/x)(100)(.25)+(60/x)(100)(.75)=50 (1,000/x)+(4,500/x)=50 5,500/x=50 50x=5,500 x=110
If 7p plus 5q equals -3 find q when p equals 1?
Look at it this way: If p = 1, then 7p = 7. What plus 7 equals -3? Adding 7 to -10 would equal -3, so all we have to figure out is what times 5 would equal -10. 5 times -2 would equal -10 so q equals -2.
