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oee [108]
3 years ago
13

How can i do substitution while multiplying

Mathematics
1 answer:
Vlad1618 [11]3 years ago
3 0
You multiply then substitute. 

for instance- 2-4x5
2-20
-18

or

3x6-7
18-7
11

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A flatbed truck travels 144 miles in 5 hours. A semi-trailer truck travels 327 miles in 4 hours. A tanker truck travels 589 mile
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Answer:

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Step-by-step explanation:

Let's recall that the formula of the average speed is:

Average speed = Distance/Speed

Now, we can calculate the average speed for each class of vehicle, as follows:

Flatbed truck average speed = 144/5 = 28.8 miles per hour

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Tanker truck average speed = 589/15 = 39.27 miles per hour

Which truck has the fastest average speed?

<u>The semi-trailer truck has the fastest average speed</u>

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