It always equal 0
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Ben's estimate gives 7 g of nickel; the actual amount is 8.03 g.
In 1 g of the substance, there is 0.52 g of copper and 0.25 g of zinc; this gives
0.52+0.25 = 0.77 g of the substance.
The remaining part of the substance is nickel:
1-0.77 = 0.23 g of nickel.
Using Ben's estimate, 0.2 g of nickel per gram of substance, we have
0.2(35) = 7 g of nickel in 35 g of the substance.
The actual amount is 0.23(35) = 8.03 g of nickel in 35 g of the substance.
Answer:
European can holds more, Volume is approx 159π
American can, Volume is approx 149π
Step-by-step explanation:
V(cyl) = π · r² · h
2 71
3 86
4 101
6 131
.................
Eight thousandths and eight hundredths
