Marcus wants to end the semester with at least an 85 test average in his math class. On his first 3 tests, he earned 83, 97, and 80. What will he have to earn on his fourth test to have at least an 85 average? Let g represent the grade needed on his fourth test. Write an inequality that models the situation.

Hi there!  

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I believe your answer is:  

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Here’s why:  

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The numerator would consist of the test grades and the unknown 'g' and the denominator would be the number of tests he taken.

"At least" indicates a greater than or equal to inequality.

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Hope this helps you. I apologize if it’s incorrect.  

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

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step-by-step explanation: