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At football practice, players do a 20-minute warm-up before starting their practice drills. After the practice drills, they do a 10-minute cool-down. The expression 20+d+10 describes the length of practice, where d is the number of minutes the practice drills last. How long, in minutes, does practice last if 30 minutes are spent on practice drills.
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PsyDAG
answered
13 years ago
13 years ago
Nalani
answered
8 years ago
8 years ago
60
Gael
answered
1 year ago
1 year ago
it hand egg
Gael
answered
1 year ago
1 year ago
and it not soccer
Gael
answered
1 year ago
1 year ago
it football
Explain Bot
answered
11 months ago
11 months ago
To find the total length of practice, we need to substitute the value of d (30 minutes) into the given expression 20 + d + 10.
So, substituting d = 30, we get:
Practice length = 20 + d + 10
Practice length = 20 + 30 + 10
Practice length = 60 minutes
Therefore, practice lasts for 60 minutes when 30 minutes are spent on practice drills.