Question

express as km using decimals a) 8m b) 70 km 5m

Answer 1

See the attached file

8 ÷1000 =0.008

70 km + 50 ÷ 1000 =70.050
=70.05 km

Answer 2

Answer:

$i) 8m=0.008\:km$

$ii)70\:km \:5\:m =70.005\:km$

Step-by-step explanation:

/* We know that,

$\boxed {1 \: Kilometre\\ = 1000 \: m }$

$\boxed {1\: m = \frac{1}{1000}\:km}$

Now,

$i) 8m = 8 \times \frac{1\:km}{1000}\\=0.008\:km$

$ii)70\:km \:5\:m$

$=70\: km +5 \times \frac{1\:km}{1000}$

$=70\: km + 0.005 \:km$

$=70.005\:km$

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