Seudónimo Seudónimo

19-01-2021
Mathematics

contestada

HELP PLEASE!!!

Write an inequality and solve.

On the last three chemistry exams a student scored
81, 85, and 91. What score must the student earn on
the next exam to have an average above 85?

Respuesta :

ChoiSungHyun ChoiSungHyun

19-01-2021

Step-by-step explanation:

Let x be the next exam's score.

We have 81 + 85 + 91 + x > 4(85).

=> 257 + x > 340

=> x > 83

Therefore the student must score above 83.

Answer Link

Otras preguntas

"The Revolution consumed its own children" agree or disagree, and give an explanation

pls help!bPolitical Perception and Media - What's the best way to navigate all of the confusion and get the right information? How do we develop informed opinio

Claude debussy was known as

Which phrase SIgnals a compare and-contrast text structure O as a result betore long for this reason on the other hand

dialogue between you and your friend about the preperation of sister wedding?

Solve the system: y = 3x -x + 2y=5 (_,_)

pls answer this question

Someone help me with this asap

WILL GIVE BRAINLIEST, COMMENT, LIKE, AND 7 POINTS TO BEST ANSWER If you and a friend walked the same difference at different time, how can you tell who walked f

(4.1357 x 10^-15) x (5.4 x 10^2) Answer must be in scientific notation