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stellarik [79]
3 years ago
11

The world’s fastest train travels about 162 mi/h. Estimate how far the train travels in 4.75 h.

Mathematics
2 answers:
kirill [66]3 years ago
4 0
When using estimation, we usually will round up or down depending. 

162= rounds down to 160

4.75= rounds to 5

160*5= 800

It travels around 800 miles in 5 hours.

I hope this helps!
~kaikers
horsena [70]3 years ago
4 0

Answer:

770 miles

Step-by-step explanation:

The world's fastest train travels about 162 miles per hour.

The speed of train = 162 miles/hour

Train travels in 4.75 hour = 162 × 4.75

                                          = 769.5 miles ≈ 770 miles

The train travels almost 770 miles in 4.75 hours.

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What is dimensional analysis?

Dimensional analysis, which is used in both engineering and science, examines the links between various physical quantities by determining their foundational quantities and units of measurement and then following these dimensions while computations or comparisons are made.

A technique for analysis that, in the absence of sufficient data to establish accurate equations, expresses physical quantities in terms of their fundamental dimensions.

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