Answer:
15x +7
Step-by-step explanation:
Like terms can be combined.
(8x +16) +(7x -9) = (8x +7x) +(16 -9) = 15x +7
The total number of ice cream cones sold was 15x+7.
Answer:
y=-1/4x+3 is the answer.
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Answer: 29
Step-by-step explanation:
Answer:
constant
Step-by-step explanation:
Answer:
4.5
Step-by-step explanation:
Probably too late for your RSM homework, but here is the solution:
6/(9-x) [Time they motored upstream] +6/x [Time it took the bottle to get back to the starting point] = 8/3 [Total Time]
Simplify to 54/(x(9-x))=8/3
Cross multiply: 162=(8x)(9-x)
Simplify -x^2+9x=20.25
Multiply both sides by negative one and move 20.25 to the other side. x^2-9x+20.25=0
Solve and get 4.5 :D!
