Question

One package of blueberries costs $ 5 . How many packages of blueberries can you buy for $ 15 ? Is this relationship proportional ? Explain your reasoning .​

Answer 1

3 packages because if divide the 5$ it cost for one package and $15 > your amount of money u have < it shows ur only able to purchase 3 packages of blueberries

Answer 2

Divide the total amount of money you have by the cost of one package of blueberries.

If one package of blueberries is $5, and you have $15, divide 15 by 5

15 ÷ 5 = 3

Answer: (pt.1)

You can buy 3 packages of blueberries with $15 dollars.

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In a proportional relationship, the ratios of the x and y variables are equivalent.

To find out if this relationship is proportional, take two of the points and convert them to fractions (x over y).

(1, 5) & (3, 15) ⇒ $\frac{1}{5}$ & $\frac{3}{15}$

Divide the numerators and denominators by each other. If they both equal the same number, the relationship is proportional.

3 ÷ 1 = 3 ,,, 15 ÷ 5 = 3

Answer: (pt. 2)

Yes, the relationship is proportional.

Hope this helped! :)

~ V.