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pickupchik [31]
3 years ago
8

Y=x+4 y=-2x-2 explain the awnser plz

Mathematics
1 answer:
Sliva [168]3 years ago
6 0

Answer:

x = -2 and y = 2

Step-by-step explanation:

We have the following system of linear equations;

y=x+4

y=-2x-2

To solve the above system, we shall be equating the right hand sides of the two equations since we have y's on the left hand side of both equations;

x + 4 = -2x - 2

add 2x on both sides of the equation;

x + 4 + 2x = -2x - 2 + 2x

3x + 4 = -2

subtract 4 on both sides of the equation;

3x + 4 - 4 = -2 - 4

3x = -6

x = -2

We can use the first equation y=x+4 to determine the value of y;

y = -2 + 4

y = 2

The solution to the system of linear equations is thus;

x = -2 and y = 2

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Step-by-step explanation:

I like to use ratio's to solve this  type of problem.  I will put cost over number of tacos.


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3 years ago
Read 2 more answers
500 tickets were sold for a game for a total of $862.50. If adult tickets sold for $2.00 and children's tickets sold for $1.50,
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You can work these in your head if you consider the revenue generated by the least contributor (children's tickets) and the difference in revenue between that and the larger contributor ($2.00 -1.50 = 0.50).

If all were children's tickets, the revenue would be 500*$1.50 = $750.00. The actual revenue exceeded that amount by $862.50 -750.00 = 112.50. This difference in revenue is made up by the sale of $112.50/$0.50 = 225 adult tickets. Then the number of children's tickets is 500 -225 = 275.

225 adult tickets were sold
275 children's tickets were sold.

_____
If you need an equation, you can write an equation using a variable for the number of adult tickets sold (the largest contributor).
.. (500 -a)*1.50 +a*2.00 = 862.50
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[50 pts, will mark right answer as Brainliest] A bag contains the following prize tickets:
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<u>Total number of tickets:</u>

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<u>Number of slushie or an ice cream sundae prize tickets:</u>

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<u>Probability of drawing a slushie or an ice cream sundae prize ticket:</u>

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<u>Predicted number of times a slushie or an ice cream sundae prize ticket will be drawn:</u>

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6 0
2 years ago
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