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enot [183]
3 years ago
9

7a + 2b =22 3a +4b=11

Mathematics
2 answers:
LekaFEV [45]3 years ago
7 0

Answer:

i understand super Bowl party of cylinde and audio track of rhombus are the diagonal of matrix and audio track of your life with hi I have a good idea for a good day please find the attached file is scanned image in hi I was just wondering what the e mail address that I have a great day please find attached the diagonal of matrix of cylinde and recording in the attached file is attached file for your time in hi there I was thinking we could have

Oxana [17]3 years ago
5 0

Answer:

i didnt understand dear

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The answer is D

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2 years ago
Henry is mixing concrete. To make concrete he needs to mix cement, sand and gravel in the ratio 1 : 4 : 7 by weight. Henry needs
jolli1 [7]

Answer:

Henry is short of gravel

Step-by-step explanation:

Here, we are to identify which of the ingredients Henry is short of.

To identify this ingredient, what is needed to be done is to share the 180kg of concrete appropriately to get which of the material does not meet its ratio and thus allowing us know which is insufficient.

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For sand, we have

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For gravel, we have

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From the values in the question, we can see that all the values we have are greater what is shared in the ratio except in the case of gravel. So we can confidently say he is short of gravel

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