Question

На покраску 7 скамеек израсходовали 5 3/5 кг краски.На сколько скамеек хватило 3 1/5 кг краски?​

Answer 1

Ответ:3 1/5 кг : 4 = 4/5 кг (краски на одну скамейку)

5 3/5 кг : 4/5 кг = 7 (на 7 скамеек)

а) 5*4/5 кг = 4 кг (краски на 5 скамеек)

б) 6*4/5 кг = 24/5 кг=4 4/5 кг (краски на 6 скамеек)

в) 7*4/5 кг = 28/5 кг=5 3/5 кг (краски на 7 скамеек)

7) 8*4/5 кг = 32/5 кг=6 2/5 кг (краски на 8 скамеек)

Ответ: на 7 скамеек потребуется 5 3/5кг краски, на 5 скамеек - 4 кг краски, на 6 - 4 4/5 кг, на 8 скамеек - 6 2/5 кг

вот и все))

Пошаговое объяснение:

Answer 2

Calculating the Amount of Paint Needed

To calculate how much paint is needed for each bench, we can use the given information that 7 benches required 5 3/5 kg of paint. We can then find out how much paint is needed for each bench.

First, let's calculate the amount of paint needed for each bench: - Total paint used for 7 benches: 5 3/5 kg - Paint used per bench: (5 3/5) / 7

To find out how much paint is needed for 1 bench, we can divide the total paint used by the number of benches: - (5 3/5) / 7 = 0.7857 kg per bench

So, approximately 0.7857 kg of paint is needed for each bench.

Amount of Paint for 3 1/5 kg

Now, let's calculate how many benches can be painted with 3 1/5 kg of paint.

Given: - Amount of paint available: 3 1/5 kg - Paint needed per bench: 0.7857 kg per bench

We can find out how many benches can be painted with 3 1/5 kg of paint by dividing the total paint available by the paint needed per bench: - 3 1/5 / 0.7857 ≈ 3.96

So, with 3 1/5 kg of paint, it would be enough to paint approximately 4 benches.

Therefore, with 3 1/5 kg of paint, it would be enough to paint approximately 4 benches.