Question

Which of the following masses is the smallest?

0.006 kilograms

500 milligrams

40 grams

4.2 decigrams

Answer 1

which 1 do u think is the smallest?

Answer 2

the miligram

Answer 3

milli is 10^-3 nd deci is 10^-1

Answer 4

turn them all into grams...that will help

0.006 kilograms = 6 grams
500 miligrams = 0.5 grams
40 grams = 40 grams
4.2 decigrams = 0.42 grams

now does that help?

Answer 5

yes that helps basallote but should i multiply or divide?

Answer 6

what do you mean? to convert them?

Answer 7

yes

Answer 8

are you familiar with using ratio and proportion? i can introduce a way to convert using that..

Answer 9

yes i am. go ahead a show me please

Answer 10

a) 1 kilogram = 1000 grams

to convert 0.006 kilogram into grams...

1 : 1000 = 0.006 : x

multiply the means and extremes..

(1)(x) = (0.006)(1000)
x = 6 grams

b) 1000 miligram = 1 gram

to convert 500 miligrams into grams...

1000 : 1 = 500 : x

500 = 1000x
500/1000 = x
1/2 = x
x = 0.5 grams

Answer 11

do i still need to show c and d?

Answer 12

yes please

Answer 13

i dont really get where u got 0.006 O_O

Answer 14

it's the given... 0.006 kilograms

Answer 15

oh nvm blond moment x.x

Answer 16

hah :))

Answer 17

for c..it's already in grams so no need to convert

d)10 decigram = 1 gram

10 : 1 = 4.2 : x

4.2 = 10x
4.2/10 = x

x = 0.42 grams

Answer 18

lol when do i know when to multiply then divide?

Answer 19

look at the ratio and proportion...just multiply the insides then multiply the outsides

Answer 20

hmm...i dont understand that...

Answer 21

or....if it's bigger..multiply

if it's smaller..divide

for example 0.006 kilogram

kilogram is BIGGER than grams

therefore multiply kilogram by 1000

0.006 x 1000 = 6

Answer 22

500 miligrams..

miligrams is smaller than grams

therefore divide by 1000

500/1000 = 0.5

Answer 23

ohh ok. so what if it was asking me grams to miligrams i would...divide?

Answer 24

no multiply?

Answer 25

oops yeah multiply sorry :p

Answer 26

i got confused too lol

Answer 27

Lol ohk. Thanks I understand :D

Answer 28

great!!! ^_^