ShyBinFloxkin ShyBinFloxkin

26-02-2018
Mathematics

contestada

Evie has scores of 72, 78, 80 And 84 On four Science quizzes. What score must she get on the next quiz to have an average of at least 80?

Respuesta :

airelavice airelavice

26-02-2018

x= the next quiz
(72+78+80+84+x)/5=80
*5 *5
72+78+80+84+x=400
314+x=400
-314 -314
x=86
Evie needs to get a score of 86 on her next science quiz.

Answer Link

Otras preguntas

Are 3/8 and 3/4 equivalent fractions?Draw a number line to show your answer.

Solve. x^2+y^2=9 2z^2-y^2=6

what warms and moistens air; filters dust particles?

(2x-1)+x=68 solve x please in for wednesday asap

which is bigger 0.96 or 19/20

what is equivalent fractions's to 2/11

Which sentence is punctuated correctly? A. Dennis likes hiking, camping, and fishing; but Megan, I've been told, hates being outdoors. B. Dennis likes hiking; c

True or False: Religion serves as a powerful agent of social control, encouraging conformity to the norms of society.

What happened to the value of the Mark in the years following WW1?

Oxygen enters the blood in..... a.) bronchi b.) pharynx c.) larynx d.) alveoli