ccssqanbari ccssqanbari
  • 14-05-2020
  • Mathematics
contestada

2.5 kg of potatoes cost £1.40
Work out the cost of 4.25 kg of potatoes.
5.95

Respuesta :

altavistard
altavistard altavistard
  • 14-05-2020

Answer:

£2.38

Step-by-step explanation:

Write and solve an equation of ratios:

 £1.40       2.5 kg

----------- = ------------

     c          4.25 kg

Cross multiplying, we get:

(£1.40)(4.25 kg) = (2.5 kg*c), or

       (£1.40)(4.25 kg)

c = -------------------------- =  £2.38

             2.5 kg

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