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polet [3.4K]
3 years ago
5

Since it arrived at a safari park, a giraffe's height has increased from 8

7D" id="TexFormula1" title="\frac{1}{2}" alt="\frac{1}{2}" align="absmiddle" class="latex-formula"> feet to 12 \frac{3}{4}. By what percent has the giraffe's height increased? PLZ show your work and explain.
A. 30%
B. 40%
C. 50%
D. 60%
Mathematics
2 answers:
romanna [79]3 years ago
6 0
It's A.

8 1/2 ÷12 3/4 × 100 = 66.66667%
100% - 66.66667% = 33.33333%

This wasn't an option, but the closest estimate to this is: 30%, so it's A.
Fantom [35]3 years ago
4 0

Answer:

Height of giraffe increases by 50%\\

Step-by-step explanation:

The initial height of giraffe is 8\frac{1}{2}\\\frac{17}{2} \\

The final height of giraffe is 12\frac{3}{4} \\\frac{51}{4}\\

Percentage increase in height

(\frac{\frac{51}{4} - \frac{17}{2} }{\frac{17}{2} }) *100\\= 50\\

The height of giraffe increases by 50%\\

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