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KatRina [158]
10 months ago
7

Jenny knit a total of 12 centimeters of scarf over 2 nights. How many nights will Jenny have

Mathematics
1 answer:
faust18 [17]10 months ago
4 0

As we can assume the relationship is directly proportional, we have to build the proportion and do the cross product. So:

\begin{gathered} \frac{12cm}{\text{2 nights}}=\frac{18cm}{x\text{ nights}} \\ 12x=2\cdot18 \\ 12x=36 \\ x=\frac{36}{12} \\ x=3 \end{gathered}

She needs 3 nights

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