-5x + 4y = -22
-3x – 4y = -26

x = 6

y = 2

Step-by-step explanation:

Solve for x in the first equation:

-5x + 4y = -22

Step 1 - Subtract 4y from both sides:

-5x + 4y - 4y = -22 - 4y

-5x = -22 - 4y

Step 2 - Change every operation to its opposite counterpart:

5x = 22 + 4y

Divide both sides by 5:

Step 3 - Now substitute this into the second equation:

-3x - 4y = -26

-3( ) - 4y = -26

-3()

Step 4 - Multiply both sides by 5:

Step 5 - Simplify the brackets

130 = 66 + 12y + 20y

130 = 66 + 32y

Step 6 - Subtract 66 from both sides of the equation;

130 - 66 = 66 + 32y - 66

64 = 32y

Step 7 - Divide both sides by 32:

2 = y

Step 8 - So y  = 2, so now we can substitute this into one of the equations:

-5x + 4y = -22

-5x + 4(2) = -22

-5x + 8 = -22

Subtract 8 from both sides

-5x + 8 - 8 = -22 - 8

-5x = -30

5x = 30

Divide both sides by 5:

x = 6

Hope this helps!

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

we'll this would mean that the dunk tank and the bounce house are the same for 20 hours because the 2 represents that the two activities, and the 20 represents the amount of hours they both are. so with this said, it means that the answer is c. the costs for a dunk tank and bounce house are the same for 20 hours.

c.the costs for a dunk tank and bounce house are the same for 20 hours.

hope this .