# working with data

josephs final averages in science class are shown in the table below.

homework
average-93

quizzes
average-92

tests
average-85

final exam
average-?

what is the minimum score joseph can get on the final exam in order to receive at least 90 for his final grade?

1. 👍
2. 👎
3. 👁
1. .2*93 + .2*92 + .4*85 + .2*X >= 90. Solve for X.

1. 👍
2. 👎
2. 95

1. 👍
2. 👎

## Similar Questions

1. ### math

A​ student's course grade is based on one midterm that counts as 15​% of his final​ grade, one class project that counts as 15​% of his final​ grade, a set of homework assignments that counts as 40​% of his final​

2. ### english

write a letter to your friend in another school telling him/her at least three ways you find life in the final year class is different from being in the class

3. ### statistics

A​ student's course grade is based on one midterm that counts as 5​% of his final​ grade, one class project that counts as 25​% of his final​ grade, a set of homework assignments that counts as 35​% of his final​

4. ### Statistics

The score distribution of the final exam in a data science course follows a normal distribution with mean 70 and standard deviation 10. Let α in (0,1) . As a reminder, the quantile of order 1−α of a random variable X is the

1. ### math

Professor Ivy has given the following weights to her grades: Weight of Area Homework 5% Projects 20% Quiz 15% Exams 60% Your friend has the following averages: Homework: 99 Projects: 85 Quizzes: 30 Exams: 70 Calculate his grade

2. ### Science

Which star shown on the luminosity and temperature of stars graph in the Earth Science Reference Tables is currently at the Sun's final predicted stage of development, and how do you know? a. Polaris b. Procyon B c. Sirius d.

3. ### STATS HELP

Final averages are typically approximately normally distributed with a mean of 72 and a standard deviation of 12.5. Your professor says that the top 8% of the class will receive an A, the next 20% a B, the next 42% a C, the next

4. ### science

A science teacher tells her class that their final project requires the students to measure a specific variable and determine the velocity of a car with no more than 2.5% error. Jennifer and Johnny work hard and decide the

1. ### Algebra

Before the final exam, a student has test scores of 72, 80, 65, 78, and 60. If the final exam counts as one-third of the final grade, what score must the student receive in order to have a final average of 76 percent? Thanks!!

2. ### Statistics

In your biology class, your final grade is based on several things: a lab score, score on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 25% of

3. ### Math

In college algebra a student earns an average grade of 86 on his homework and 75 on his quizzes. What final examination grade will give him a total average of 80 if homework 1/10 , quizzes 3/5 and the final examination 3/10?

4. ### Digital art and design

GUYS PLEASE HELP I MEED TO GET THIS DONE THERES 50 QUESTIONS FINAL EXAM Lesson 1: Final Exam 0103000 M/J Digital Art and Design 1- T2 Unit 5: Final Exam PLEASE PLEASE PLEASE HELP ILL REPAY YOU IN SOME WAY IF I HAVE TO 😖😖😖