Question

How many wobbles
A balloon pump and three packs of balloons cost £9 altogether
A balloon pump and four packs of balloons cost £11 atorgene
S.​

Answer 1

Step-by-step explanation:

1 ballon pump + 3 ballons = 9 euros ----(1)

1 ballon pump + 4 ballons = 11 euros ----(2)

by (1) - (2)

1 ballon = 2 euros ------(3)

substute (3) in (1) then

1 ballon pump+3(2) =9

1 ballon pump = 9-6 = 3

Finally cost of Ballon pump = 3 euros

cost of Ballon = 2 euros

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