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11 August, 01:43

The cost of 3 pounds of grapes is $6.57 what is the constant of proportionally that relates the cost in dollars, y, to the number of pounds of grapes, x

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  1. 11 August, 01:52
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    Hello! So first off, let's find the unit rate by dividing the price by the amount of grapes. 6.57/3 is 2.19. Grapes cost $2.19 per pound. Constant of proportionality is set up as y = kx, where "k" is the constant of proportionality, "y" is the total value, and "x" has to do with the amount". In this case, because 2.19 fills in as "k", with 3 filling in as "x", and 6.57 as "y". The constant of proportionality is 2.19.
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