High School

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An average elephant weighs 245 pounds at birth. During the first three weeks of life, the baby elephant will usually gain about 7 pounds per day.

Assuming that growth rate, solve the inequality:

\[ 245 + 7x \]

Answer :

It will take at least 6 days for the baby elephant to weigh at least 287 pounds, as it gains 7 pounds per day starting from a birth weight of 245 pounds resulting in 6 days.

To determine how many days it will take for a baby elephant to weigh at least 287 pounds given it weighs 245 pounds at birth and gains about 7 pounds per day, we solve the inequality 245 + 7x >= 287.

  1. Subtract 245 from both sides of the inequality: 7x >= 287 - 245.
  2. Calculate the difference: 7x >= 42.
  3. Divide both sides by 7 to find x: x >= 42 / 7.
  4. Calculate the division: x >= 6.

Therefore, it will take at least 6 days for the baby elephant to reach a weight of 287 pounds.

complete question:

An average elephant weighs 245 pounds at birth. During the first three weeks of life, the baby elephant will usually gain about 7 pounds per day. Assuming that growth rate, solve the inequality 245+7x>=287 to find how many days it will be until the baby elephant weighs at least 287 pounds.

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