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NARA [144]
3 years ago
12

As part of a screening process, computer chips must be operated in an oven at 145 °C. The starting temperature is 25 °C. After 1

5 minutes, the temperature is 85 °C. How many minutes will it take the oven to reach its specified operating temperature?
Mathematics
1 answer:
DaniilM [7]3 years ago
4 0

Answer:

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 = \frac{15}{60}=\frac{1}{4}\:minutes

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

Time take by oven to increase 120°C temperature = \frac{1}{4}\times120=30\:minutes

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

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Step-by-step explanation:

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What is the minimum number of points you have to have to form a line?
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3 years ago
A. Multiply the radius by 2 to find the diameter. b. Multiply the diameter by π. c. Measure the radius of the lid. Which is the
Nimfa-mama [501]

Answer:

The Correct order to calculate the circumference of a circular lid

1 )  Measure the radius of the lid.

2 ) Multiply the radius by 2 to find the diameter.

3 ) Multiply the diameter by π.

Step-by-step explanation:

Circumference :

In geometry, the circumference (from Latin circumferens, meaning "carrying around") of a circle is defines as the linear or Circular distance around it.

It is  given by the formula:

Circumference= \pi d

d =Diameter = 2\times Radius

The Correct order to calculate the circumference of a circular lid

1 )  Measure the radius of the lid.

Radius will be measured

2 ) Multiply the radius by 2 to find the diameter.

Diameter = 2 × Radius

3 ) Multiply the diameter by π.

π × Diameter = Circumference

Then we will get the Circumference,

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7 0
3 years ago
BRAINLIEST ANSWER NOW!!! MEDAL, STARS, THANK YOU'S! PLEASE HELP ME ASAP! AND IF YOU CAN, EXPLAIN YOUR ANSWER! THANKS SO MUCH IN
bazaltina [42]
<span>The problem says that Donovan is using similar rectangles, so you can calculate the length of the second rectangle, by using the similarity concept.

 We have that the first rectangle </span>is 2 inches wide and 6 inches long, and the second rectangle must has<span> 5 inches wide. Then:

 2/5=6/L  (L: </span>the length of the second rectangle).
<span> 2L=6x5
 2L=30
 L=30/2
 L=15 inches

 H</span><span>ow long must the second rectangle be? 
</span><span>
 The answer is: The second rectangle must be 15 inches long.



</span>
7 0
3 years ago
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