Carla buys 4kg of apples for $10. How much will Ahmed pay for 14kg of apples at the same shop?
Find price per kg .... then multiply by kg
10 / 4 * 14 = ____________ dollars
We can solve this with proportions:
410=14x
cross multiply: 4x=10⋅14
4x=140
x=35
35 dollars