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The total cost (y) of buying cherries per pound (x) is shown in the chart.Strawberries cost 3 times as much as cherries.Which equation represents the cost (y) of buying (x) pounds of strawberries?

The total cost (y) of buying cherries per pound (x) is shown in the chart.Strawberries-example-1
User Legend
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1 Answer

3 votes

Solution

For this case we have the following info:

Cherries (x) 3 6 9

Cost (y) 9 18 27

For this case we can solve the relation with:

y= kx

And solving for k we got:

k= y/x = 9/3 =3

Then the equation is:

y= 3x

User Peppe
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