16 scarfs because every 4 scarfs takes 5 feet of fabric
Write an equation system based on the problem. For an instance, x represents the number of $3 tickets sold and y represents the number of $5 tickets sold.
x + y = 40
3x + 5y = 136
Solve the equation system using elimination method. Use elimination of y in order to find the value of x
x + y = 40 (multiplied by 5)
3x + 5y = 136 (multiplied by 1)
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5x + 5y = 200
3x + 5y = 136
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2x = 64
x = 64/2
x = 32
The value of x is 32. She sold 32 tickets worth $3
What does the variables represent?
Equation of a line passing through point (x1, y1) with slope m is given by y - y1 = m(x - x1)
y - 2 = -1/2(x - 6)
2(y - 2) = -(x - 6)
2y - 4 = -x + 6
x + 2y = 6 + 4
x + 2y = 10
Answer:
Step-by-step explanation:
subtract 3 from both sides
divide each term by 6
simplify
