solve for k by simplifying then isolating the variable ... K equals 0
Step-by-step explanation:
When a point is reflected across the y-axis, the y-coordinate remains the same and the x-coordinate gets multiplied by -1.
(-4, -1) => (4, -1)
(2, 6) => (-2, 6)
The reflected points are (4, -1) and (-2, 6).
Game
Using these variables, we can set up equations.
3x + 5y = 42
9x + 7y = 72
We have here a system of equations, where we have two or more equations with two or more different variables. We use the elimination method to solve for the variables.
Multiply eq1 by 3. Keep eq2.
9x + 15y = 126 eq1
9x + 7y = 72 eq2
Subtract eq2 from eq1 to eliminate the x terms.
8y = 54
y = 6.75
Trapezoid Area =
[ ( Sum of the rules ) × ( height ) ] ÷ 2
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Area = [ ( 6 + 12 ) × 8 ] ÷ 2
Area = [ 18 × 8 ] ÷ 2
Area = ( 18/2 ) × 8
Area = 9 × 8
Area = 72
Answer:
Step-by-step explanation:
Let the students price = x
Let the teacher's price = y
34x + 3y = 635
34y = 299.54
y = 299.54 / 34
y = 8.81
The only way to do this is to assume that students and teachers are charged the same amount for admission. But the question should say so.
So x = y
37x = 635.66
x = 635.66 / 37
x = 17.18
So the total spent per student was
8.81 + 17.18 = 25.99