The ratio of fish to ducks at the water's edge was 5 to 2. If there were 28 in all, how many were fish?
1 answer:
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Answer:
Step-by-step explanation:
We are given that Ben has a cell phone plan that provides 200 free minutes each month for a flat rate of $39.
We are also told that For any minutes over 200, Ben is charged $0.35 per minute.
let x be the minutes used each month
So, if
So, coat will be $39
If
So, Ben is charged $0.35 per minute
So, when
So, charge =
So, the piecewise functions accurately represents charges based on Ben's cell phone :
Answer:
Step-by-step explanation:
<u><em>The complete options are</em></u>
a) x - 2y = 30
b) 4x - 3y = 30
c) 3x - 4y = 30
d) 6x - 6y = 30
The given equation is
<u>Verify option d</u>
we have
Divide by 6 both sides
therefore
and
are equivalent