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nexus9112 [7]
1 year ago
15

The sum of two numbers is 55 and the difference is 15 what are the numbers

Mathematics
2 answers:
Lady_Fox [76]1 year ago
7 0

x + y = 55 \\ x - y = 15 \\  \\ 2x = 70 \:  \:  \:  \:  \:  \: x = 35 \\ y = 55 - x = 55 - 35 = 20

muminat1 year ago
3 0

Answer:

55-15=40 is the correct answer

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Solve the system of equations y = 6x -7 <br><br> y = 3x + 11
max2010maxim [7]
If they both are equal to y, they must be equal to each other therefore,
6x-7 = 3x+11
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7 0
2 years ago
Find the distance between each pair of points. Round your answer to the nearest tenth. (-6, -5) and (2, 0)
Anna71 [15]

Answer:

The answer is

<h2>9.4 units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

d =  \sqrt{ ({x1 - x2})^{2} +  ({y1 - y2})^{2}  }  \\

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-6, -5) and (2, 0)

The distance between them is

d =  \sqrt{ ({ - 6 - 2})^{2} +  ({ - 5 - 0})^{2}  }  \\  =  \sqrt{ ({ - 8})^{2}  + ( { - 5})^{2} }  \\  =  \sqrt{64 + 25}  \\  =  \sqrt{89}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\  = 9.4339811

We have the final answer as

<h3>9.4 units to the nearest tenth</h3>

Hope this helps you

7 0
3 years ago
In two years, Linda will be half as old as her mother. Her mother is 38 years old now. Let L = the age of Linda now. Which formu
shutvik [7]
IDk but ill trry to put the formula..chose what evers closest to this -->      1/2*38=L      L= 19
5 0
3 years ago
There are 8 candidates for student government: Hal, Mary, Ann, Frank, Beth, John, Emily, and Tom. The three candidates that rece
sveticcg [70]

Answer:

56

Step-by-step explanation:

Given that there are 8 candidates for student government: Hal, Mary, Ann, Frank, Beth, John, Emily, and Tom.

The three candidates that receive the highest number of votes become candidates for a runoff election.

i.e. 3 persons out of 8 to be selected for becoming candidates for a runoff election.

Since order does not matter we use combinations here

3 persons out of 8 can be done in 8C3 ways

= 56

no of 3-candidate combinations  possible are 56

3 0
3 years ago
Which number when rounded to the nearest tenth is 43.6
Alex73 [517]

Answer:

Any number greater than 43.54 and less than 43.6 rounds to 43.6. So, 43.55, 43.56, 43.57, 43.58 and 43.59 all round up to 43.6.

8 0
2 years ago
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