If you look at the chart (about the chores) you can find out everthing
Ni : Zn: Cu = 7:2:9 =7x : 2x : 9x
7x+2x+9x = 3.8
18x=3.8
x=3.8/18=1.9/9≈0.21
Ni: 7x=7*0.21=1.47 ≈1.5 kg
Zn: 2x=2*0.21=0.42≈0.4 kg
Cu: 9x=9*0.21=1.89 ≈1.9 kg
Check 1.5+0.4+1.9 =3.8 True
The answer would be true because 4+5 is > 8
The candle sales decreases to - 15 percentage.
<u>Step-by-step explanation:</u>
(476 - 560) : 560 x 100
= (476 : 560 - 1)100
= 85 - 100 = - 15
Therefore, - 15% did the candle sales decrease.
Divide 18 to both sides and you get -12
