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Art [367]
3 years ago
11

Natalie picked 135 berries in 15 minutes. If she continues picking at that rate, how long will it take her to pick 486 berries?

Mathematics
2 answers:
lutik1710 [3]3 years ago
7 0
\begin{array}{ccc}135\ berries&-&15\ min\\\\486\ berries&-&\ x\ min\end{array}\ cross\ multiply\\\\\\135x=15\times485\\\\135x=7275\ \ \ \ \ |divide\ both\ sides\ by\ 135\\\\x=\frac{7275}{135}\\\\x=\frac{485}{9}\\\\x=53\frac{8}{9}\ (min)\approx54\ (min)
nikklg [1K]3 years ago
4 0
We can use proportion to solve it
135 berries -------------15min
486 berrier --------------x
Our x is equal to =x= \frac{486*15}{135} =54min
Its our result
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