If you alredy know what 'decreased' means, then you should be able to figure out that 9-3=6.
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if the quotient of -20 and 4 is decreased by 3
Oh, dude, let's break it down. So, 25% of 12 is 3, right? Subtract that from 12 and you get 9. So, 12 decreased by 25% is 9. Easy peasy, lemon squeezy!
z decreased by 9 is z-9
Oh, dude, you're hitting me with some math lingo! So, the quotient of c and nine is c/9, and if you decrease that by 3, you just subtract 3 from it. So, the expression would be (c/9) - 3. Voilà! Math made easy... kind of.
When 3 times a number is decreased by 4 the result is 17. what is the number?