219. There is a local maximum at x = 2, local minimum at x = 1, and the graph is neither concave up nor concave down.
1 answer:
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Dana made 96 strides.
Step-by-step explanation:
Given,
Ratio of Sally's stride to Dana's strides = 5:4
Strides made by Sally = 120
Let,
x be the strides made by Dana.
Ratio of Sally to Dana = 120:x
Using proportion;
Ratio of Sally's stride to Dana's stride :: Ratio of Sally to Dana
Product of mean = Product of extreme
Dividing both sides by 5
Dana made 96 strides.
Keywords: ratio, proportion
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