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Alexeev081 [22]
3 years ago
6

Jenny decided to grow out her hair. Over 6 months, her hair length grew by 100%. During the next 6 months, her hair length grew

by 50%. What was the combined increase in hair length during the entire year
Mathematics
2 answers:
zimovet [89]3 years ago
8 0
150% in 12 months. .......
musickatia [10]3 years ago
5 0
In your mind, you could think 100% more is 200% and 50% of that is another 100% so 200% increase. Let's see on paper. x will be her current hair length. 

<span>x + x + .5(x + x) </span>

<span>x + x is simply her hair length doubling. This is when it grew 100% longer. Then, from that, we have 50% more, so we have to add 50% of the x + x. </span>

<span>2x + .5x + .5x </span>
<span>3x </span>

<span>Subtract our starting length. </span>

<span>3x - x = 2x </span>

<span>The difference is 2 hair lengths, or 200% her original length of hair.</span>
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