M = mile
.55m + 1.45 [less than or equal to] 35
subtract 1.45
.55m = 33.55
divide by .55
m = 61 miles or less
He started with 17 quarter's. He had a certain number of quarters he added to his collection each day, on day two he had 26, and two days later he had 35, meaning he increased the amount of quarters my 9 over two day's, so I subtracted 9 from 26 because if you do you can remove the quarters he added in from the ones he started with, so the answer is: He started with 17.
First multiply 9x10 which is 90, then it would be 90^4 which is 65,610,000.
The coefficient of x in the equation is 1/(300 grams). Multiply by the reciprocal of that, which is (300 grams).
x = (300 grams)×(2 grams)/(100 grams) = (300×2/100) grams = 6 grams
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This is the way you solve any equation where x is multiplied by some value in the only term on one side of the equal sign.