40. 115m = An athlete trains per day
690m = total minutes of athlete’s training
d = number of days
=> 115(d) = 690
Now, the equation would be, 115 minutes per day to be multiplied by d or the number of days to get 690minutes in all.
=> 690 / 115 = 6
=> 115 (6) = 690
d = 6
Therefore, an athlete trains 115 minutes in 6 days to get the total of 690 minutes in all.
To write an equation that relates the number of days d that the athlete spends training when the athlete trains for 690 minutes, we first need to know that the athlete trains for 115 minutes each day. This situation calls for a division operation where the total minutes trained is divided by the minutes trained per day to find the number of days.
The equation that represents this situation is:
Total minutes trained = (Minutes trained per day) * (Number of days)
Substituting the given values, we have:
690 = 115 * d
To solve for d, we divide both sides of the equation by 115:
d = 690 / 115
After performing the division:
d = 6
So, the athlete can train for 6 days to reach a total of 690 minutes of training.
The equation relating the number of days d the athlete trains is 115 d = 690 . Solving this gives d = 6 , meaning the athlete trains for 6 days. This works out as the athlete training 115 minutes each day totals 690 minutes.
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