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Zina [86]
3 years ago
13

There are 3 people who work full time and are to work together on a project, but their total time on the project is to be equiva

lent to that of only one person working full time. if one of the people is budgeted for 1/2 of the time and the other person is budgeted for 1/3, what part od the third workers time should be budgeted to this project
Mathematics
1 answer:
lara [203]3 years ago
3 0
1/2 + 1/3 + x = 1
5/6 + x = 1
x = 1/6
x being the amount of time for the third person. YOU'RE WELCOME :D
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Mike made a 9 inch sub sandwich. He needs to cut it into 2/3 inch pieces. How many pieces will he be able to cut?
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Given that <span>Mike made a 9 inch sub sandwich which he needs to cut it into 2/3 inch pieces.</span>

The number of pieces he will be able to cut is given by

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Step-by-step explanation:

Replacement of -1/2(8x +2) by -4x -1 is use of the <em>distributive property</em>, eliminating choices B and D.

In step 3, addition of 1 to both sides of the equation is use of the <em>addition property of equality</em>, eliminating choice C. This leaves only choice A.

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<em>Additional comment</em>

This problem makes a distinction between the addition property of equality and the subtraction property of equality. They are essentially the same property, since addition of +1 is the same as subtraction of -1. The result shown in Step 3 could be from addition of +1 to both sides of the equation, or it could be from subtraction of -1 from both sides of the equation.

In general, you want to add the opposite of the number you don't want. Here, that number is -1, so we add +1. Of course, adding an opposite is the same as subtracting.

In short, you can argue both choices A and C have correct justifications. The only reason to prefer choice A is that we usually think of adding positive numbers as <em>addition</em>, and adding negative numbers as <em>subtraction</em>.

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Answer:

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Answer:

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8b:0%

Step-by-step explanation:

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3 years ago
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