35 minutes of cardio would be recommended for 20 minutes of strength.
Step-by-step explanation:
Given,
Ratio of cardio workout to strength = 7:4 minutes
Let,
x be the minutes for cardio workout for 20 minutes of strength workout.
New ratio of cardio to strength = x:20
Using proportion;
Ratio of cardio workout to strength :: New ratio of cardio to strength
[tex]7:4::x:20[/tex]
Product of mean = Product of extreme
[tex]4*x=7*20\\4x=140\\[/tex]
Dividing both sides by 4x
[tex]\frac{4x}{4}=\frac{140}{4}\\x=35[/tex]
35 minutes of cardio would be recommended for 20 minutes of strength.
Keywords: ratio, proportion
Learn more about proportions at:
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