Question

can anyone answer this please step by step explanation of you don't know the answer, please don't reply​

Answer 1

Answer:

6 kg

Step-by-step explanation:

30 + 40 =70

100-70=30

the value of nickel is 30%

then 30% of 20 kg is 6kg

now nickel = 6 kg

Answer 2

Answer:

6kg

Step-by-step explanation:

As it given that the alloy consists of:-

Copper 30%

Zinc 40%

therefore as it is given that the allow consists of three metals that are Zinc, Copper and Nickel

therefore total alloy= Zinc+Copper +Nickel

100%=40%+30%+ Nickel

therefore Nickel= 100%-70%=30%

Therefore in 20 kg alloy, 30% of nickel will be:-

(30/100 ) × 20

=6kg

Hope it helps you,

Please mark me as the brainlest.