Express as km using decimals: |
(a) 8m |
(b) 88 m |
(c) 8888 m |
(d) 70 km 5 m |
Answer:
We know that 1 km = 1000 m So, \[1\,\text{m}=\frac{1}{1000}\,\text{km}\] (a) \[8\text{ m}=8\times \frac{1}{1000}\text{km}=0.008\text{ km}\] (b) \[88\text{ m}=88\times \frac{1}{1000}\text{km}=0.088\text{ km}\] (c) \[8888\text{ m}=8888\times \frac{1}{1000}\text{km}=8.888\text{ km}\] (d) \[70\,\,\text{km}\,\,5\,\,\text{m}=70\,\,\text{km}+5\,\,\text{m}\] \[=70\,\,\text{km}+\frac{5\times 1}{1000}\text{km}\] x\[=(70+0.005)km\,\,=70.005\,km\]
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