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An illustration shows quadrant one of a coordinate plane where the x-axis and y-axis range from 0 to 6 in increments of 1. The y-axis is titled total cost in dollars and the x-axis is titled number of markers. A solid line, labeled A, is marked on the graph and passes through coordinates left parenthesis 0 comma 0 right parenthesis and left parenthesis 3 comma 6 right parenthesis. A dotted line, labeled B, passes through coordinates left parenthesis 0 comma 0 right parenthesis and left parenthesis 6 comma 3 right parenthesis.

Predict what the total cost would be for buying 10 of the type A markers.

(1 point)
Responses

$5.00
$5.00

$0.50
$0.50

$20.00
$20.00

$2.00
$2.00
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page 14 of 14

1 answer

To determine the total cost for buying 10 markers of type A based on the given graph, we can analyze the solid line A.

The line A passes through the points (0, 0) and (3, 6). This tells us that if you buy 3 markers, the total cost is $6, which gives us a unit cost for type A markers.

To find the cost per marker for A:

  1. Total cost for 3 markers = $6.
  2. Cost per marker = Total cost / Number of markers = $6 / 3 = $2 per marker.

Now, to find the total cost for 10 markers of type A:

Total cost for 10 markers = Number of markers * Cost per marker = 10 * $2 = $20.

Therefore, the total cost for buying 10 of type A markers would be $20.00.