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If 35% of 465 students chose peanuts, that means we know that 65% of the students chose other nuts. 35%+65%=100%, which is what we want in this case.
To find 65% of 465, you change 65% into its decimal form, which is .65. You then multiply .65 times 465 and it comes out to be...
To begin this problem, you have to know what the reciprocal of a number means. The reciprocal of a number means one over said number. So the reciprocal of 4 would be 1/4 or .25.
From the beginning portion of the word problem, we know that 8*(1/x) equals...
In order to solve this problem, all you have to do is plug in 256 wherever you see an "x".
So you would have R=119.44(256)-.22(256)2.
Remember your order of operations when dealing with the exponent.
Hope this helped,