Authur earned $136 in three weeks. He goes back to school in one more week. He needs at least $189 to buy the new coat that he wants for school. How much must Authur earn in the next week?
Its an inequality question.

Authur earned 136 in three weeks He goes back to school in one more week He needs at least 189 to buy the new coat that he wants for school How much must Authur class=

Respuesta :

Answer:

136+ m ≥ 189 is the required inequality : m: The earning in 4th week

Arthur needs to earn AT LEAST $53 in the fourth week to buy the coat which costs at least $189.

Step-by-step explanation:

The amount earned by Arthur in first 3 weeks = $136

The amount needed to buy a coat = AT LEAST $189

Let us assume the amount Arthur needs to earn more to buy  coat = $m

$ 136 + Amount Earned in 4th week  ≥ $189

136+ m ≥ 189

The above equation is the NEEDED inequality of the given situation.

Now, solving for the value of m, we get:

136+ m ≥ 189

⇒  m ≥ 189 - 136 = 53

or, m ≥ $53

Hence, Arthur needs to earn AT LEAST $53 in the fourth week to buy the coat which costs at least 189.