X ⋅ x ⋅ x ⋅ x = ? a: 4x b: x(x+4) c: x^4 d: x+4
2 answers:
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Answer:
Slope = 5/3
Step-by-step explanation:
See attached image
Let x be the number of weeks; therefore, the two linear equations are
Where T stands for the punches on the tea punch card and C for the punches on the coffee punch card.
Solving by substitution. Set T=C, then
Thus, substitute the value of x=3 into the first equation,
Thus, after 3 weeks, Josiah will have the same number of punches on each card, and he will have 23 punches on each card.