A bowl of soup is heated to a temperature of 190°F. It is then allowed to cool at a temperature of 50°F. The soup cools to 130°F in 20 minutes. Determine how long it will take for the soup to cool to 100°F. A.
29.961 minutes
B.
30.243 minutes
C.
36.797 minutes
D.
41.518 minutes

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step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

step-by-step explanation:

where is the question is there is a formula or is there not one