[tex]<span>1\dfrac{1}{7}=\dfrac{1\cdot7+1}{7}=\dfrac{8}{7}\\\\1\dfrac{1}{7}:\dfrac{1}{9}=\dfrac{8}{7}:\dfrac{1}{9}=\dfrac{8}{7}\cdot\dfrac{9}{1}=\dfrac{72}{7}[tex]
Answer: 1 1/7 : 1/9 = 72 : 7
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Here is the equation:
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You need to get "x" by itself so minus 3 from each side
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Divide 8 by 2
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x=4
So each 4 is equivalent to 4
Lets check:
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So that means that Marcus practiced the piano for 4 hours and Donnel practiced for 7