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Rachel records the temperature in her garden at noon each day.

On Monday, the temperature was 5 °C.

On Tuesday, the temperature was 10° less than the temperature on Monday.

On Wednesday, the temperature was 3° greater than the temperature on Tuesday.

Find the difference between the temperature on Monday and the temperature on Wednesday.

You must show all your working.

Answer :

ADIOABIOLAGO

The difference between the temperature on Monday and the temperature on Wednesday is; 7° C.

Temperature

  • On Monday, the temperature was 5 °C

  • On Tuesday, the temperature was 10° less than the temperature on Monday.

In essence, the temperature on Tuesday was;

  • 5°C - 10°C.

= -5°C

  • On Wednesday, the temperature was 3° greater than the temperature on Tuesday.

In essence, the temperature on Wednesday was;

  • -5°C + 3°C

= -2°C

The difference between the temperature on Monday and the temperature on Wednesday is therefore; 5°C - (-2°) = 7°C.

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