SOLUTION: on a school trip, y minibuses are needed. each minibus will hold 14 pupils. after filling up each minibus the last minibus has 3 spare seats. a)write an expression for the number

Question 612829: on a school trip, y minibuses are needed. each minibus will hold 14 pupils. after filling up each minibus the last minibus has 3 spare seats.
a)write an expression for the number of pupils going on the trip.
b)the teacher counts 81 pupils getting on the minibuses. Use this information to form an equation.
c) Solve this equation to fnd out how many minibuses were used.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
on a school trip, y minibuses are needed. each minibus will hold 14 pupils. after filling up each minibus the last minibus has 3 spare seats.
a)write an expression for the number of pupils going on the trip.
# of pupils = 14*(number of minibuses)-3
p = 14m - 3
--------------------------
b)the teacher counts 81 pupils getting on the minibuses. Use this information to form an equation.
81 = 14m - 3
------------------------
c) Solve this equation to find out how many minibuses were used.
14m = 81+3
14m = 84
m = 6 mininbuses
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Cheers,
Stan H.
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