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Dennis_Churaev [7]
2 years ago
12

Find the output why when the input x is 2 y=

Mathematics
2 answers:
Volgvan2 years ago
7 0

Answer:    Y=-2

Step-by-step explanation:

Just took the test

Tom [10]2 years ago
3 0

Answer:

2x

Step-by-step explanation:

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What is 3 1/3 + 4 4/6=?​
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In A certain chemical, the ratio of zinc to copper is 3 to 19. A jar of the chemical contains 836 grams of copper. How many gram
Elis [28]

Answer:

The jar contains 132 grams of zinc

Step-by-step explanation:

zinc to copper = 3 : 19

New equivalent weights

zinc to copper = x : 836

Now, let us solve for x as follows

\frac{zinc}{copper}  = \frac{3}{19} = \frac{x}{836} \\\\cross-multiplying\\3 \times\ 836 = 19 \times\ x\\2508 = 19x\\x = \frac{2508}{19}\\x =  132

the jar contains 132 grams of zinc

To check if the answer is accurate, the answer gotten when the weight of zinc is divided by copper will be the same for both the old and new ratios:

old ratio: 3 ÷ 19 =  0.158

new ratio: 132 ÷ 836 = 0.158

3 0
2 years ago
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