Lindsay practices the guitar 50 minutes on Saturday and 30 minutes on most weekdays. Last week she practiced 140 minutes. How many weekdays did she practice? Write an equation in the form px+q=r to represent this problem.(2 points)
_ x + _ = _
3 answers
4x + 30 = 140
A baby elephant weighs 150 pounds when born. It gains 2 pounds per day during the first year. How many days will it take the elephant to weigh a total of 224 pounds?(1 point)
days
days
Let "d" represent the number of days it will take for the elephant to weigh a total of 224 pounds.
Since the elephant gains 2 pounds per day, the weight of the elephant "w" after "d" days can be represented by the equation:
w = 150 + 2d
We want to find the number of days when the weight reaches 224 pounds, so we set w equal to 224 and solve for d:
224 = 150 + 2d
Subtracting 150 from both sides:
74 = 2d
Dividing both sides by 2:
37 = d
Therefore, it will take the elephant 37 days to weigh a total of 224 pounds.
Since the elephant gains 2 pounds per day, the weight of the elephant "w" after "d" days can be represented by the equation:
w = 150 + 2d
We want to find the number of days when the weight reaches 224 pounds, so we set w equal to 224 and solve for d:
224 = 150 + 2d
Subtracting 150 from both sides:
74 = 2d
Dividing both sides by 2:
37 = d
Therefore, it will take the elephant 37 days to weigh a total of 224 pounds.
1 answer