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3 years ago

Simplify 2 x - 8 x - 6 y + 9 -14 + x + 11 y.

2 answers:

8 0

=2x+−8x+−6y+9+−14+x+11y

=(2x+−8x+x)+(−6y+11y)+(9+−14)

= -5x+5y+-5

= -5x+5y-5

Answer is = -5x+5y-5

Pachacha [2.7K]3 years ago

7 0

the correct answer is B: -5 x + 5 y - 5

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3 years ago

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An alloy consists of nickel, zinc, and copper in the ratio 2:7:9.

Alexus [3.1K]

Answer:

0.4kg, 1.4kg and 1.8kg

Step-by-step explanation:

Given parameters:

Mass of alloy = 3.6kg

Ratio of elements in the alloy = 2:7:9

Unknown:

Mass of each element in the alloy = ?

Solution:

To find the mass of each element in the alloy, first find the sum of the ratio;

2+7+9 = 18

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