Lilianna uses \dfrac{3}{4} 4 3 start fraction, 3, divided by, 4, end fraction calories per minute just by sitting. She uses 111 more calorie per minute by walking. Lilianna uses a total of 12\dfrac{1}{4}12 4 1 12, start fraction, 1, divided by, 4, end fraction calories walking to the park. Lilianna uses the equation, d\left(\dfrac{3}{4}+1\right)=12\dfrac{1}{4}d( 4 3 +1)=12 4 1 d, left parenthesis, start fraction, 3, divided by, 4, end fraction, plus, 1, right parenthesis, equals, 12, start fraction, 1, divided by, 4, end fraction to represent the situation
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Lilianna walked for 7 hrs
Step-by-step explanation:
Lilianna uses calories per minute just by sitting = 3/4
Lilianna uses calories per minute by walking = 3/4 + 1 = 7/4
Lilianna uses a total of 12 1/4 = 49/4 Calories walking to the park
Number of Hours walked = (49/4)/(7/4)
= 7 Hrs
Lilianna walked for 7 hrs
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Answer:
Number of minutes Lilianna walked
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