Answer:
<em>58%</em>
<em>Step-by-step explanation:</em>
<em>Just do 0.576923 times 100% & you should get 57.6923% than round because it says nearest whole number so that's how your answer is 58% :)</em>
Step-by-step explanation:
The total number of parts is 4 + 1 + 2 = 7.
Nickel is 4/7 of the mass: 4/7 × 35 kg = 20 kg.
Zinc is 1/7 of the mass: 1/7 × 35 kg = 5 kg.
Copper is 2/7 of the mass: 2/7 × 35 = 10 kg.
Hi there!
The Eqn. is :-
1.5 (x + 4) - 3 = 4.5 (x - 2)
1.5x + 6 - 3 = 4.5x - 9
Combining the like terms :-
1.5x - 4.5x = - 9 - 6 + 3
- 3x = - 15 + 3
- 3x = - 12
x =

x = 4
Hence, the required answer is → x = 4
~ Hope it helps!