Your optimal exercise heart rate for cardiovascular benefits is calculated as follows: Subtract your age from 220 and then find 80% of the difference.

the rate for a 40 year old is 144 and the rate for a 10 year old 168

Rounded to the nearest whole number, the optimal rate for the 10-year-old is _____% greater than the optimal rate for a 40-year-old.

24/144 = 1/6 = 17%

To find the optimal heart rate for a 40-year-old, we'll use the given formula: Subtract age (40) from 220, and then find 80% of the difference:

220 - 40 = 180
80% of 180 = 0.8 * 180 = 144

Therefore, the optimal heart rate for a 40-year-old is 144.

Now, let's calculate the optimal heart rate for a 10-year-old using the same formula:

220 - 10 = 210
80% of 210 = 0.8 * 210 = 168

Therefore, the optimal heart rate for a 10-year-old is 168.

To find the percentage difference between these two rates, we need to subtract the rate for the 40-year-old from the rate for the 10-year-old, and then calculate the percentage difference:

Percentage Difference = ((New Value - Original Value) / Original Value) * 100

Percentage Difference = ((168 - 144) / 144) * 100
Percentage Difference = (24 / 144) * 100
Percentage Difference = 0.1667 * 100
Percentage Difference = 16.67%

Rounded to the nearest whole number, the optimal rate for the 10-year-old is approximately 17% greater than the optimal rate for a 40-year-old.

To calculate the optimal exercise heart rate for cardiovascular benefits, you can follow these steps:

1. Subtract your age from 220: This will give you the maximum heart rate (MHR). For a 40-year-old, the MHR would be 220 - 40 = 180 beats per minute (BPM).

2. Find 80% of the difference: Multiply the MHR by 0.8 to determine the optimal heart rate for cardiovascular benefits. For a 40-year-old, this would be 180 x 0.8 = 144 BPM.

Now, let's calculate the optimal heart rate for a 10-year-old:

1. Subtract the age (10) from 220: The MHR for a 10-year-old would be 220 - 10 = 210 BPM.

2. Find 80% of the difference: Multiply the MHR by 0.8 to determine the optimal heart rate for a 10-year-old. 210 x 0.8 = 168 BPM.

To calculate the percentage difference between the optimal rates, we can use the following formula:

Percentage Difference = ((New Value - Old Value) / Old Value) x 100

Let's calculate the percentage difference of the optimal rate for the 10-year-old compared to the 40-year-old:

((168 - 144) / 144) x 100 = 24 / 144 x 100 = 16.67%

Therefore, rounded to the nearest whole number, the optimal rate for the 10-year-old is approximately 17% greater than the optimal rate for a 40-year-old.