Andy and Kal ran a race together. Kal finished the race in one hour and five minutes. Andy took 35% longer than Kal. Approximately how long did Andy take to finish the race? 88 minutes
100 minutes
140 minutes
142 minutes

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Ответ:

smileyjesse6073

31.03.2022

Mathematics

8x^2-10x-6

Step-by-step explanation:

Given : length = 3x^2-5x+1 , width = x^2-4

Perimeter of rectangle = 2 ( length + width)

Then, Perimeter of given rectangle = 2 (3x^2-5x+1+x^2-4)

$=2 (4x^2-5x-3)\\\\= 8x^2-10x-6$

Hence, the correct expression for perimeter = 8x^2-10x-6

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Andy and Kal ran a race together. Kal finished the race in one hour and five minutes. Andy took 35% longer than Kal. Approximately how long did Andy take to finish the race? 88 minutes100 minutes140 minutes142 minutes