Answer:
33
Step-by-step explanation:
Here, d represents the number of push-ups Darnell completed during his previous personal best and k represent the number of push-ups Katie completed,
∵ According to the question,
Darnell's current push ups = d + 8,
Mia's push-ups = d,
Katie push-ups = d + 6
Again according to the question,
d + 8 = 35 ⇒ d = 27,
Hence, the number of push-ups completed by Katie, k = d + 6 = 27 + 6 = 33
Answer:
7.5
Step-by-step explanation:
7.5 is the coefficient of x
Answer:
400
Step-by-step explanation:
240 is 60% of 400. That means that 400 people are in the class hope this helps.
90-73=17
answer：17 hahahaaha
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 ~
