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1. If 15 apricots cost R5,60, how many apricots will cost R10,08?

2. How much will it cost for 1kg of polony if 0,35 kg of polony costs R25,10?

3. If 12,5 kg of sugar cost R90, how much will 7,2 kg of the sugar cost?

4. A scooter uses 6,5ℓ petrol to travel a distance of 130 km. How much petrol will it use to travel a distance of 80km?

5. Peter used 5ℓ of paint to paint a wall that is 8 m long and 5m high. How many square metres can Peter paint with 1ℓ of paint?​

Respuesta :

francocanacari

1- 27 apricots will cost R10.08.

2- 1 kg of polony will cost R71.71.

3- 7.2 kg of sugar cost R51.84.

4- It will use 4 liters of oil to travel a distance of 80km.

5- Peter can paint 8 square meters with 1 liter of paint.

Calculus

To answer the questions made, the following calculations must be made:

1. If 15 apricots cost R5.60, how many apricots will cost R10.08?

  • 5.60 = 15
  • 10.08 = X
  • 10.08 x 15 / 5.60 = X
  • 151.2 / 5.6 = X
  • 27 = X
  • Therefore, 27 apricots will cost R10.08.

2. How much will it cost for 1kg of polony if 0.35 kg of polony costs R25.10?

  • 0.35 = 25.10
  • 1 = X
  • 25.10 / 0.35 = X
  • 71.71 = X
  • Therefore, 1 kg of polony will cost R71.71.

3. If 12.5 kg of sugar cost R90, how much will 7.2 kg of the sugar cost?

  • 12.5 = 90
  • 7.2 = X
  • 7.2 x 90 / 12.5 = X
  • 648 / 12.5 = X
  • 51.84 = X
  • Therefore, 7.2 kg of sugar cost R51.84.

4. A scooter uses 6.5ℓ petrol to travel a distance of 130 km. How much petrol will it use to travel a distance of 80km?

  • 130 = 6.5
  • 80 = X
  • 80 x 6.5 / 130 = X
  • 520 / 130 = X
  • 4 = X
  • Therefore, it will use 4 liters of oil to travel a distance of 80km.

5. Peter used 5ℓ of paint to paint a wall that is 8m long and 5m high. How many square meters can Peter paint with 1ℓ of paint?

  • 8 x 5 = 40
  • 40 / 5 = 8
  • Therefore, Peter can paint 8 square meters with 1 liter of paint.

Learn more about calculus in https://brainly.com/question/26453068

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