Ice is placed around a bowl of water to lower the temperature. The equation D=−75t+22D=-75t+22 shows the time, t, measured in minutes and temperature, D, measured in degrees Celsius.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Check all the options. Option A

If t=7 minutes

D=-7/5t+22

D=-7/5(7)+22

D=-49/5+22

D=-49+110/5

D=61/5

D=12.2°C

Change in temperature=12.2°C-22°C

D = -9.8°C

For option B

If t=5 minutes

D=-7/5t+22

D=-7/5*5+22

D=-7+22

D=15°

Change in temperature=15°-22°

D=-7°

For option C

The temperature of the ice must be less than 22°C

For option D

D=-7/5t+22

When ice is not placed, t=0

D=-7/5t+22

D=-7/5(0)+22

D=0+22

D=22

The temperature of the water before cooling is 22°

The complete options are given below:-

a)The temperature of the water decreases 5°C every 7 minutes.

b)The temperature of the water increases to 7°C every 5 minutes.

c)The temperature of the ice that is around the bowl is 22°C

d)Before cooling begins, the temperature of the water is 22°C

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