13.5 is the correct answer
You're first problem is unclear as I am not sure if that t was suppose to be there or not.
but as for the second one (33.7y+8.4-2.04y) we would first have to combine like terms so you'd subtract 2.04y from 33.7y , which would give you ; 33.66y so now your answer would be " 33.66y + 8.4 ",
there's nothing more you can do because they're seperate terms c: .
Your third problem ( 4.2x+8.1x+1.8x-2.1x ) is also combining like terms. Add the first 3 terms and that'll give you 14.1x , now subtract 2.1x and that'll give you "12x" as your final answer ~
For your fourth problem x+2 ( x-y ) , you would have to do something called factoring , basically all you gotta do is distribute term by term. So, x times x would give you x^2 , x times -y would give you -xy , 2 times x is 2x , and 2 times -y is -2y , so that'll look somethng like x^2 - xy + 2x - 2x . Now the 2x's cancel out
and you are left with "x^2 - xy" as your final answer ~
Answer:
15 gallons
Step-by-step explanation:
Hope it helps. :)
Given:
Total amount Jose has = $75
Registration fee = $15
Additional fee = $6 for each class
To find:
Number of classes that Jose can afford.
Solution:
Let x be the number of classes that Jose can afford.
Additional fee for 1 class = $6
Additional fee for x classes = $6x
Total fee = Registration fee + Additional fee for x classes
Divide both sides by 6.
Therefore, the required equation is and the number of classes he can afford is 10.
