Math, asked by saikalki, 4 months ago

(b) A science experiment requires controlling the temperature of an object as follows:
Step 1: The temperature is increased by 6°C every minute for five minutes.
Step 2: The temperature is decreased by 4°C every minute for three minutes.
Steps 1 and 2 are repeated continuously. If the object's temperature is 15°C before the
experiment begins, what will its temperature be after
(i)
six minutes into the experiment?
(ii) ten minutes into the experiment?​

Answers

Answered by maltiagrawal736
1

Step-by-step explanation:

an=36+(-36)

an=0(ANS)

Answered by amitnrw
1

Given : A science experiment requires controlling the temperature of an object as follows:

Step 1: The temperature is increased by 6°C every minute for five minutes.

Step 2: The temperature is decreased by 4°C every minute for three minutes.

Steps 1 and 2 are repeated continuously.

Object’s temperature is 15°C before the experiment begins,  

To Find :  temperature after six minutes into the experiment

(ii) temperature after  ten minutes into the experiment

Solution:

Initial Temperature =  15°C

temperature is increased by 6°C every minute for five minutes

Hence Temperature increased in 5 minutes = 6 * 5 = 30°C

Temperature  after 5 minutes = 15 + 30  = 45°C

The temperature is decreased by 4°C every minute for three minutes.

Hence Temperature decreased in next 1  minute =  4°C

Temperature  after 6 minutes =  45°C -  4°C   =  42°C

temperature after six minutes into the experiment  is 41°C

Temperature  after 5 minutes =  45°C

The temperature is decreased by 4°C every minute for three minutes.

Hence Temperature decreased in next 3  minutes =  12°C

Temperature after 8  minutes into the experiment  is  45 - 12 = 33°C

Then again in next 2 minutes ,  temperature is increased by 12 °C

Hence temperature after 10 minutes into the experiment  is 33°C +  12 °C

= 45°C

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