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
(45 gal/day) x (31 day/Dec) =
(45 x 31) (gal/Dec) = <em>1395 gallons</em> per December .
Choice-B is closer to that figure than Choice-A is,
but they're both poor estimates.
<span>3 quarters and 2 pennies.3 quarters= $0.75 2 pennies= $0.02= $0.77</span>
It should be noted that 24 percent of 60 is 14.4.
<h3>How to calculate the percentage?</h3>
The question is to calculate 24% of 60.
This will go thus:
= 24% × 60
= 24/100 × 60
= 0.24 × 60
= 14.4
Therefore, 24% of 60 is 14.4.
Learn more about percentages on:
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Answer:
go to m a t h w a y . c o m but dont add the spaces and it will give you the answer just type it exactly how you did on here
Step-by-step explanation:
