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abruzzese [7]
2 years ago
7

In a certain chemical, the ratio is zinc to copper is 4 to 15. A jar of the chemical contains 570 grams of copper, how many zinc

does it contain
Mathematics
1 answer:
iVinArrow [24]2 years ago
3 0

Answer:

zinc = 152 grams

Step-by-step explanation:

Ratio of zinc to copper = 4 : 15

Copper = 570 grams

zinc = x grams

Find x

Ratio of zinc to copper = x : 570

Equate both ratios

4 : 15 = x : 570

4/15 = x/570

Cross product

4 * 570 = 15 * x

2,280 = 15x

x = 2,280/15

= 152

x = 152 grams

zinc = 152 grams

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3 years ago
F (x) = -4x² + 10x + 13
Alexus [3.1K]

Answer:

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Step-by-step explanation:

Hello!

Substitute 7 for x in the equation.

<h3>Evaluate</h3>
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