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lbvjy [14]
3 years ago
10

Calculate the average rate of change over the intervals [0, 20] and [60, 80]. What does the average rate on these intervals tell

you about the balloon’s journey?
Mathematics
1 answer:
Assoli18 [71]3 years ago
4 0

\frac{20 - 80}{0 - 60 }  = slope \: or the \: rate \: of \: \\  change \:  \\  \\      \frac{ - 60}{ - 60}  = 1
It tells you that over these intervals the balloon is going at a constant speed.
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1.1

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When adding decimals, you can imagine it like you are adding normal numbers, and that you are carrying extra (more than 9) to the next column in the same way.

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At first, it might seem like adding 0.2 to 0.9 would result in 0.11, but let's think that through a little bit more. We know that 0.1 is less than 0.2, so, it doesn't make sense for that to be the sum.

Instead, we have to carry the 11 over to the other side of the decimal. (This is because each place value is equal to 10 of the value to the right. If we add digits in the ones place that add up to 10, we carry the "1" over to the right, into the tens place.)

So, we carry the "1" from 11 to the one's place. Now, we are left with

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What is the y intercept and slope
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