antonia is making a cake she uses currants:walnuts:sultanas =4:3:5 mass=3.6 kg calculate mass of sultanas pls help

Question

hartnn · Answer

since the ratio is 4:3:5 let the individual quantities be 
4x, 3x and 5x
total = 3.6 
so, 4x+3x+5x = 3.6 
can you find 'x' from here ?
then sultanas' mass will be just 5x :)

anonymous · Answer

thank u

hartnn · Answer

welcome ^_^
if you want me to verify your answer, tell me what u got :)

anonymous · Answer

ya sure

anonymous · Answer

sorry , but i am getting the wrong answer
pls help me

hartnn · Answer

sure,
4x+3x+5x = 3.6

(4+3+5)x =3.6
12x =3.6
x = 3.6/12 = 0.3

did you get the same 'x' value ?

anonymous · Answer

yup

anonymous · Answer

ok now i got it

anonymous · Answer

thank u so much

hartnn · Answer

most welcome ^_^

anonymous · Answer

price=$18
given discount=15%
work out the discount

hartnn · Answer

x% = x/100
so, 15% of 18  = 15/100 *18 =....?

anonymous · Answer

can i ask u if i come through more doubts

hartnn · Answer

sure! :)
always happy to help ^_^

anonymous · Answer

7.15 hours to hours and minutes

hartnn · Answer

7.15 hours = 7 hours and 0.15 hours
now we need to convert 0.15 hours to minutes

x hrs = x*60 minutes
0.15 hrs = 0.15*60 minutes = ... ?

anonymous · Answer

wht does tht star mean

hartnn · Answer

multiplication

anonymous · Answer

k

anonymous · Answer

the mass of earth is app. 5.97*10 raise to 24
mass of moon is app. 1 upon 81
calculate mass of moon