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NNADVOKAT [17]
2 years ago
15

The ratio for mixing mortar using sand, lime and cement is 3:2:1.

Mathematics
1 answer:
yulyashka [42]2 years ago
3 0

Answer:

Sand: 21 parts.

Lime : 14 parts.

Cement: 7 parts.

Step-by-step explanation:

The number of parts is 3 + 2 + 1 = 6.

So for 42 parts we need:

Sand: 3/6 * 42 = 1/2 * 42 = 21.

Lime:  2/6 * 42 = 1/3 * 42 = 14,

Cement: 1/6 * 42 = 7.

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There are 10 multiple choice questions in an examination. first 4 have 5 choices each and remaining have 4 choices each. how man
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2560000 sequences of answers are possible.

<em><u>Explanation</u></em>

Total number of questions = 10

First 4 questions have 5 choices each and remaining (10-4)= 6 questions have 4 choices each.

So, the possible sequences of answers for first 4 questions = 5^4 = 625

and the possible sequences of answers for remaining 6 questions = 4^6=4096

Thus, the total possible number of sequences of answers = (625 × 4096) = 2560000

5 0
3 years ago
Read 2 more answers
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tensa zangetsu [6.8K]

The employees that drive to work is 380

The total number of employees that drive to work is 660

<h3>How many employees drive to work?</h3>

A fraction is a non integer that is made up of a numerator and a denominator. A fraction is used to express the ratio or the relationship between two or more quantities. An example of a fraction is 1/2.

The number of employees that drive to work can be determined by multiplying the fraction of the employees that drive to work by the total number of employees.

Employees that drive to work = 2/3 X 570 = 380

In order to determine the employees that drive to work, take the following steps:

Determine the total number of employees : 3 x 330 = 990

The total number of employees that drive to work: 2/3 x 990 = = 660

To learn more about multiplication of fractions, please check: brainly.com/question/1114498

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What is the inverse of a function F parentheses X equals 1/9 X +2
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Answer:

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Step-by-step explanation:To find inverse for this problem interchange the variables and solve for y

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(7x + 5)(2.13 – 412 + 9.1 – 3)
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Step-by-step explanation:

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Step-by-step explanation: :)

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