Solving system by substitution x=3y+11, 2x-3y=16
2 answers:
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Answer:
The answer is option B
Step-by-step explanation:
Since the figure above is a right angled triangle we can use trigonometric ratios to find y
To find y we use tan
tan∅ = opposite/ adjacent
From the question
is the adjacent
The opposite is y
So we have
<h3>But
<h3>That's
<h3>Cross multiply
We have the final answer as
<h2>Hope this helps you
The graph is missing, so i have attached it.
Answer:
$0.40 per minute
Step-by-step explanation:
From the attached graph, we can see that it is a linear graph.
Thus, to find the unit rate paid by Ken, we will calculate the slope by picking two coordinate points with thick dots on the blue and calculating it.
Point 1 = (15, 6)
Point 2 = (35, 14)
Slope = (y2 - y1)/(x2 - x1)
Slope = (14 - 6)/(35 - 15)
Slope = 8/20
Slope = $0.40 per minute
