1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
CaHeK987 [17]
3 years ago
5

You are enrolled in a wellness course at your college. You achieved grades of 70, 86, 81, and 83 on the first four exams. The fi

na exam counts the same as an exam given during the semester. A.) If x represents the grade on the final exam, write an expression that represents your course average (arithmetic mean). B.) If your average is greater than or equal to 80 and less than 90, you will earn a B in the course. Using the expression from part A for your course average, write a compound inequality that must be satisfied to earn a B.
Mathematics
1 answer:
Ilya [14]3 years ago
4 0
Note that there are 5 exams altogether:  4 hour exams and 1 final exam.  Let the grade on the final be x.

The arith. mean of these 5 grades would be
                                                                        <span>70+ 86+ 81 + 83 + x
</span>                   course grade = arith. mean = -------------------------------------
                                                                                        5
You might be interested in
A number is divided by 3. That quotient is increased by 12. The result is 46. Find the number.
anzhelika [568]

Let the number be x.

x/3 + 12 = 46

Subtract 12 from both sides and you will get:

x/3 = 34

Multiply both sides by 3:

x = 102

3 0
3 years ago
Meeta buys a ticket for the movie and a popcorn, which costs $6. She spends $16.50 in all. How much was the movie ticket?
Sav [38]

Answer:

10.50

Step-by-step explanation:

16.50-6

6 0
2 years ago
Simplify expression x^2 - xy + 2x/ 2x, step by step please. ​
Papessa [141]

Answer:

x^2 - xy + 1

Step-by-step explanation:

x^2 - xy + 2x/2x

2x/2x = 1

x^2 - xy + 1

This is the furthest we can simplify this expression with the given information.

4 0
3 years ago
A student with two summer jobs earns $10 per hour at a cafe and $8 per hour at a market the student would like to earn at least
JulsSmile [24]

Answer: the answer is 432 per day so in 2 days she/he will have just enough

Step-by-step explanation:

7 0
2 years ago
Li-Ming owns an ice cream shop. On Saturday evening from 6:00 PM to 7:00 PM, 80 people entered her shop. On Tuesday from 3:00 PM
KengaRu [80]
To find the percent decrease from Saturday to Tuesday, you will find the difference between the number of customers on those days and divided by the total number of customers on Saturday.

By dividing this you will get a decimal, which then can be converted to a percent.

80-17= 63

63/80 = 0.7875
0.7875 = 78.75%

There was a 78.75% decrease from Saturday to Tuesday.
6 0
3 years ago
Other questions:
  • 228000(1.03) exponential or decay
    12·1 answer
  • a wall on the side of a building is made up of 52 rows of bricks with 44 in each row.how many bricks make up the wall
    13·1 answer
  • Find the slope of (-1,-2) and (1,0)
    8·1 answer
  • What is being done to the variable in the equation = -40?
    5·2 answers
  • The sum of a number and nine is fifteen<br><br> Write an equation to represent the sentence
    9·1 answer
  • 45 is 3% of what number?<br><br> quick I need an answer!<br> hurry pls!
    6·2 answers
  • A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form (y = mx + b) fo
    9·1 answer
  • A wire is anchored on a 9-meter pole. One part is attached to the top of the pole and the other meters away from the base. Quest
    13·1 answer
  • Sally recorded these amounts in her checkbook:
    5·1 answer
  • Graph the system of inequalities. Then use your graph to identify the point that represents a solution to the system.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!