Hey I'm having trouble with a ratio problem :
when mixing a quantity of dyes four different colours are used in the ratio of 7:3:19:5. if the mass of the first dye used is 3.5 grams determine the total mass of the dyes used.
Thanks
when mixing a quantity of dyes four different colours are used in the ratio of 7:3:19:5. if the mass of the first dye used is 3.5 grams determine the total mass of the dyes used.
7/3 = w/x = 3.5/x,
x = 3.5(3)/7 = 1.5 grams
3/19 = x/y = 1.5/y,
y = 1.5(19)/3 = 9.5 grams
19/5 = y/z = 9.5/z,
z = 9.5(5)/19 = 2.5.
Total mass of dye = w + x + y + z = ?