Answer:
69
Step-by-step explanation:
Answer:
Sir/ma'am, your rater per hour would be 4.
Step-by-step explanation:
Brainliets please, sir/ma'am.
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Y = m x + b
m : slope
b :intercept
m = -9 - 27/ 2 +2 = -9
y = -9 x + b
27 = -18 +b
b = 45
y = -9 x + 45
Given:
A metal is made from copper, zinc and lead in the ratio 13:6:1.
The mass of zinc is 90kg.
To find:
The mass of the metal.
Solution:
It is given that the metal is made from copper, zinc and lead in the ratio 13:6:1.
Let the mass of copper, zinc and lead are 13x, 6x and 1x respectively.
The mass of zinc is 90kg. So,
Now, total mass of the metal is:
Therefore, the mass of the metal is 300kg.