Students in an English class need a mean of at least 90 points on four tests to earn an A. One student has scored 87,92,85. Write and solve an inequality to find what score the student needs on the next test to earn an A.
020714
I think that's it xDDD
-pokes name-
but you NEVER know.
how about (x+87+92+85)/4 > 90
I am sure you can solve that.
i need help with my homework please help
Of course, I’d be happy to help you with your homework!
To write the inequality, let's define the variable x as the score the student needs on the next test. Since the student needs a mean of at least 90 points on all four tests to earn an A, we can sum up the scores from all four tests and divide by 4 to find the mean score.
The inequality can be written as:
(87 + 92 + 85 + x) / 4 ≥ 90
To solve this inequality, we can start by multiplying both sides of the inequality by 4 to get rid of the denominator:
87 + 92 + 85 + x ≥ 360
Next, we can simplify the left side of the inequality:
264 + x ≥ 360
To isolate the variable x, we can subtract 264 from both sides of the inequality:
x ≥ 360 - 264
Simplifying further, we get:
x ≥ 96
Therefore, the student needs to score 96 or higher on the next test in order to earn an A in the English class.