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evablogger [386]
3 years ago
12

The temperature in a chemical reactor was measured every half hour under the same conditions. The results were 78.1°C, 79.2°C, 7

8,9°C, 80.2°C, 78.3°C, 78.8°C. 79.4°C.
the mean ?​
Mathematics
1 answer:
gladu [14]3 years ago
3 0

Answer:

72.2

Step-by-step explanation:

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The cost of renting a bus for a field trip was split evenly among 20 students. At the last minute, 10 more students joined the t
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By solving a linear equation, we will see that the total cost for renting the bus is $90.

<h3>What was the total cost of renting the bus, in dollars?</h3>

Let's say that the total cost is C.

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When the other 10 students are added (for a total of 30) each student pays:

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We know that the cost for each of the original 20 students decreased by $1.50, so:

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Then we have 3 equations to work with:

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Now we can replace the first and second equations into the third one:

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If you want to learn more about linear equations:

brainly.com/question/1884491

#SPJ1

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1 year ago
You withdraw $29.79 from your bank account. Now your balance
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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