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
Answer:
C
130 Units 2
Step-by-step explanation:
Hope this helps:)
Answer:
20 - 10 = 10 - 1.99 = 8.00
Step-by-step explanation:
sorry if it's wrong brainliest plzzzzzzzzzzzzzzzzzzzzz
Answer:
No, because the interval contains 0.96.
Step-by-step explanation:
edge2021
Answer:
D
Step-by-step explanation: dosnt need to be all congruent see the question says "similar" not ecactly the same
