there were 2170 people living in the town • each person in the town recycled an average of 395.4 kg of waste. Jonathan knows that 1 tonne = 1000 kg. (a) How many tonnes of waste were recycled in the town in total in 2019? Give your answer correct to 2 decimal places.

Respuesta :

Calculate the total amount of waste recycled by multiplying the number of people by the average amount of waste recycled per person. So,

2170

×

395.4

=

858018

2170×395.4=858018

kg

2Convert the weight from kilograms to tonnes by dividing by 1000, since 1 tonne = 1000 kg. Therefore,

858018

1000

=

858.018

1000

858018

=858.018

3Round the result to 2 decimal places to get 858.02 tonnes

4For the estimation check, we can estimate the total weight recycled by rounding the number of people to the nearest hundred and the average weight recycled per person to the nearest hundred. So,

2200

×

400

=

880000

2200×400=880000 kg, which is approximately 880 tonnes

5Since the actual answer is 858.02 tonnes, which is close to the estimated 880 tonnes, the calculation is verified.

So, the answer is 858.02 tonnes.

Answer:

2170 times 395.4 is 358018

Then 1ton is 1000kg what about 358018

is 358.018 tonnes

the answer is 3.58018