Exercise ID375

Algebra → Proportionality → Direct an Indirect Proportionality
[Level: ] [Number of helps: 1] [Number of pictures: 0] [Number of steps: 6] [Number of characters: 102]

If 1 kg of salami is 2800 HUF, how much will cost 35 dkg salami?

350 g x Ft1000 g 2800 Ft 350 g:1000 g=x Ft:2800 Ft 350:1000=x:2800 350·2800=1000·x x=350·28001000 x=980 Ft
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x=980 Ft

y=k·xa cb da:b=c:da·d=b·c

(When committing proportionality, follow the direction of the arrows!)

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