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-BARSIC- [3]
3 years ago
11

Person 1 can do a certain job in fifteen minutes, and person 2 can do the same job in thirty minutes. When completing the job to

gether, which expression would be used to represent the amount of work done by person 1?
Mathematics
2 answers:
Vinil7 [7]3 years ago
8 0
The expression used to represent the amount of work done by person 1 is 1/15, whereas when it comes to person 2 it is 1/30.
You use 1/15 since it is the fifteenth of one hour. 
tester [92]3 years ago
8 0
Quantity = work × time
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Gracie, Mary, and Nancy each have a small collection of seashells. Gracie has 5 more than times the number of shells Mary has. N
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Answer:

3/2 x +1 = 5/4x - 5

3/2 x+1 =5/4

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3/2 x+1−5/4

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Step 2: Subtract 1 from both sides.

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Step-by-step explanation:

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                           2 3/4 x 18 = 49 1/2 + 6 = 55 1/2  x= 18

2.  2 3/4 x 16 = 44 -4 = 40 shells  x = 16  2 3/4 x 24 = 66 - 4 = 62   x = 24

                            2 3/4 x 18 = 49 1/2 - 4 = 45 1/2   x = 18

3.   2  3/4 x 16 = 44 + 4 = 48 shells x = 16  2 3/4 x 24 = 66 + 4 = 70  x = 24                

2 3/4 x 18 = 49 1/2 + 4 =53 1/2  x = 18

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3 years ago
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Answer:

Step-by-step explanation:

The vertex of an isosceles triangle must be an even number because its identical base angles are congruent. Therefore if the angle at the vertex is x, then the vertex of an isosceles triangle must be an even number because its identical base angles are congruent. Therefore if the angle at the vertex is x, then the .

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