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Oksana_A [137]
2 years ago
14

Y = x -5 x + y = -1 whats the soultion for the systeam of eqations

Mathematics
1 answer:
pantera1 [17]2 years ago
3 0

Answer:

x = 2

y = -3

Step-by-step explanation:

y = x - 5  -------------------(I)

x + y = -1 ----------------(II)

Substitute y = x -5 in equation (II)

x + (x - 5) = -1

x + x - 5 = -1   {Combine like terms}

   2x - 5 = -1 {Add 5 to both sides}

        2x  = -1 + 5

         2x = 4 {Divide both sides by 2}

           x = 4/2

x = 2

Substitute x = 2 in equation (I)

y = 2 - 5

y = -3

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Answer:

111 degrees

Step-by-step explanation:

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3 years ago
The wind force f on a sail varies jointly as the area a of the sail and the square of the wind speed w.
blondinia [14]

Answer:

  122.5 lbs

Step-by-step explanation:

The relation between force, wind speed, and area can be written ...

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for some wind speed s and area a.

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The constant of proportionality, k, can be found from the given data.

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Using the equation with the second set of data, we have ...

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The force on the 250 square foot sail would be 122.5 pounds.

4 0
2 years ago
What is the LCM of 6 and 18? A. 12 B. 36 C. 18 D. 6
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user100 [1]

Answer:

It can be represented by the expression 2r, or “two times the radius.” So if you know a circle's radius, you can multiply it by 2 to find the diameter; this also means that if you know a circle's diameter, you can divide by 2 to find the radius. Find the diameter of the circle.

Step-by-step explanation:

you'r welcome :)

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