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konstantin123 [22]
3 years ago
5

a contractor uses the expression 7(x+3) to find the lenght,in feet,of chain that he needs for a certain project. Part A the cont

ractor needs four chains that are this lenght.What is the total lenght of all of the chains?
Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
4 0
Given that x is the number of chains;

7(4+3) = 7 * 7 = 49 feet
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Answer:

<u><em>Negative Correlation</em></u>

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Step-by-step explanation:

<u><em>Explanation</em></u>:-

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The variable x - value increases as y- value increases is called positive correlation.

<u><em>Negative Correlation</em></u>

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<u><em>No correlation </em></u>

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torisob [31]

Answer:

300ml

Step-by-step explanation:

As values are missing in your question, the complete question is:

In the lab, Leila has two solutions that contain alcohol and is mixing them with each other. Solution A is 6% alcohol and Solution B is 20% alcohol. She uses 400 milliliters of Solution A. How many milliliters of Solution B does she use, if the resulting mixture is a 12% alcohol solution?

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Hope this is right..

4 0
3 years ago
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