3 years ago

How to simplify 45/100

1 answer:

6 0

-- Look for a common factor of both the top and bottom numbers.

   ==> 5 is a common factor of 45 and 100 .

-- Divide the top and bottom numbers by their common factor.

   ==> 45/100 = 9/20 .

-- Look for another common factor of both the top and bottom numbers.

   ==> The only common factor now is ' 1 ' .

   ==> That means the fraction is now as simplified as it can get.

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Two men p and q set off from a base camp r prospecting for o,p moves 40km on a bearing 205 degree and q moves 30km on a bearing

Mkey [24]

Answer:

(a) By cosine rule, /PQ/2=202+152−2×20×15×cos145°

= 400+225−600cos145°

= 625+600×0.8192

= 491.52+625

/PQ/2=1116.52⟹/PQ/=1116.52−−−−−−√=33.41

≊33km ( to the nearest whole number)

(b) By sine rule,

sin<QPR15=sin14533.41