Originally posted by eagle:x/x+2 is the fraction, the ratio, that Alan will get from the $5
ok. thanks. =)
eh.. how come for this ques, the ans is 0.02?
Express, correct to two sig fig, 0.02049. i thought don't count zeros?
0.02049 = 0.020 (2sf)
Originally posted by secretliker:0.02049 = 0.020 (2sf)
how come ans is 0.02? -.-
how to do this ques:
each sheet of paper is 30cm long and 20cm wide. find the total surface area of both sides of one sheet of paper, giving your ans in square metres.
Originally posted by crucifiedx:eh.. how come for this ques, the ans is 0.02?
Express, correct to two sig fig, 0.02049. i thought don't count zeros?
don't count the zeroes from the left
all those on the right must count in for the case of decimals
Originally posted by crucifiedx:how to do this ques:
each sheet of paper is 30cm long and 20cm wide. find the total surface area of both sides of one sheet of paper, giving your ans in square metres.
simplest way is first to convert to 0.3m long and 0.2 m wide
Originally posted by eagle:don't count the zeroes from the left
all those on the right must count in for the case of decimals
huh? how come sometimes must count, sometimes don't need?
Originally posted by eagle:simplest way is first to convert to 0.3m long and 0.2 m wide
ok. thanks.
Originally posted by crucifiedx:
huh? how come sometimes must count, sometimes don't need?
later tuition I go through with you... should take few minutes only... very easy one
Originally posted by eagle:later tuition I go through with you... should take few minutes only... very easy one
ok. (:
Originally posted by eagle:don't count the zeroes from the left
all those on the right must count in for the case of decimals
So the answer should be 0.02?
0.020 is correct