As part of a screening process, computer chips must be operated in an oven at 145 °c. the starting temperature is 25 °c. after 15 minutes, the temperature is 85 °c. how many minutes will it take the oven to reach its specified operating temperature?

30 minutes will it take to reach its specified operating temperature from 25°C.

Step-by-step explanation:

Initial Temperature of oven = 25°C

Time taken by oven to reach 85°C temperature = 15 minutes

We have to find time taken by oven to reach at temperature of 145°C

Increase in temperature in 15 minute = 85 - 25 = 60°C

So, Time take by oven to increase 60°C temperature = 15 min

Time take by oven to increase 1°C temperature =

Temperature we have to increase = 145 - 25 = 120°C

Time take by oven to increase 120°C temperature =

Therefore, 30 minutes will it take to reach its specified operating temperature from 25°C.

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answer

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14