Tina has

Tina has 10 packages of yarn to knit a scarf.
She uses 1/3 of package of yarn for each inch of length she adds to the scarf.
If Tina uses all the yarn, how long will her scarf be?

Correct answer:

x =  30 in

Step-by-step explanation:

$$\begin{gathered} n=10 \\ h=1\mathrm{/}{\displaystyle \frac{1}{3}}=3\text{ in/y } \\ x=n\cdot h=10\cdot 3=30\text{ in} \end{gathered}$$

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