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enyata [817]
3 years ago
15

Fitness instructor recommend a workout of both cardio and strength at a ratio of 7:4 minutes how many minutes of cardio would be

recommended for 20 minutes of strength

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
3 0
4x = 20 min
7x = y min

x = 20 / 4
x = 5 min

7*5 = 35 min
tangare [24]3 years ago
3 0

Answer:

The instructor recommended cardio minutes for 20 minutes of strength are:

  • <u>35 minutes</u>.

Step-by-step explanation:

You must identify the following proportions within the text:

  • 7 minutes of cardio = 4 minutes of strength
  • X = 20 minutes of strenght

With the given data, a simple rule of three can be performed as shown below:

  • X = (20 * 7) / 4
  • X = 140/4
  • <u>X = 35 </u>

So it can be seen that <u>the answer is 35 minutes</u>, another way to identify it that the force time became 5 times greater than in the first case (20 is five times greater than 4), therefore, it is logical that the cardio minutes have been multiplied proportionally (7 * 5 = 35).

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