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
Bogdan [553]
3 years ago
8

A student has gotten the following grades on his tests. What is the minimum grade he must get on the last test in order to have

an average of 82​? 85​, 90​, 79​, 72
Mathematics
2 answers:
Stolb23 [73]3 years ago
7 0

Answer:

84

Step-by-step explanation:

Because average is basically the mean, so i used a mean calculator and put in the four grades (numbers) and got an average of 81.5, so then i kept putting an additional other number in and wasn't getting 82, until i put in 84 and all of those numbers together gave me an average of 82.

valentina_108 [34]3 years ago
3 0

Answer:

84

Step-by-step explanation:

The average is found by adding all the scores together and dividing by the number of scores

Let the unknown score be x

(85+90+79+72+x) /5 = 82

Multiply each side by 5

(85+90+79+72+x) /5*5 = 82*5

(85+90+79+72+x)  = 410

Combine like terms

326+x = 410

Subtract 326 from each side

326+x-326 = 410 -326

x =84

You might be interested in
For Emily's birthday, her father treated her and five friends to a dinner at a restaurant at the mall. Emily and her friends ord
erma4kov [3.2K]

Answer:

$58.26.

Step-by-step explanation:

Total cost without sales tax and tip =  3 * 6.25 + 3 * 7.50 + 6 *1.25

= $48.75

Plus Sales tax and tip:

= 48.75 + 0.045*48.74 + 0.15*48.75

= $58.26.

5 0
3 years ago
Plz help me.
Andre45 [30]
Answer: 60 degrees

Explanation: the angles of a triangle sum to 180 degrees, and all the angles in an equilateral triangle are the same so every angle in an equilateral triangle must equal 60 degrees.
8 0
3 years ago
Read 2 more answers
Answers for both boxes for 25 points​
Sav [38]

Step-by-step explanation:

gave you in Photo..... please do mark as brainlist

8 0
3 years ago
Which factors can be multiplied together to make the trinomial 5x2 + 8x – 4? Check all that apply.
natulia [17]
Which factors can be multiplied together to make the trinomial 5x2 + 8x – 4? Check all that apply.

(x + 1)

(2x + 1)

(x + 2)

(5x + 1)

<span>(5x – 2)

Solution :

By multiplying (5x - 2) and (x + 2), the given trinomial will be obtain as follow. 
 </span>(5x - 2) * (x + 2) = (5x * x) + (5x * 2) - (2 * x) - (2 * 2)
=  <span>5x^2 + 10x - 2x - 4
= </span>5x^2 + 8x - 4
4 0
3 years ago
Read 2 more answers
A figure is located at (2, 0), (2, -3), and (5, 0) on a coordinate plane. What kind of 3-D shape would be created if the figure
expeople1 [14]

When the shape is rotated around the x-axis, a 3-D shape would be formed

The 3-D shape is a tetrahedron with radius 2 and height 4

<h3>How to determine the 3-D shape?</h3>

The coordinates of the figure are given as:

(2, 0), (2, −3), and (5, 0)

The above coordinates represent a triangle that has one of its sides on the x-axis.

So, when the shape is rotated across the axis, the other two lines would make a diagonal the side on the x-axis.

This movement would form a tetrahedron with the following dimensions

  • Height = Distance (2, 0) and (5, 0) i.e. 3 units
  • Radius = Distance (2, 0) and (2, −3) i.e. 3 units

Hence, the 3-D shape is a tetrahedron with radius 3 and height 3

Read more about three dimensional shapes at:

brainly.com/question/12280037

5 0
2 years ago
Other questions:
  • HELP PLEASE!!! What is the total surface area of the figure shown?
    15·1 answer
  • 2.34 x 10^65   + 9.2 x10^66  
    8·1 answer
  • Paul has 7 piles of sports cards. There are3 basketball. football. and4 baseball cards in each pile. How many total sports cards
    12·2 answers
  • Select the slope (m) and y-intercept (b). 2x+y=4
    8·1 answer
  • Given: N is the midpoint of LQ,
    11·2 answers
  • Help me plz god bless
    12·1 answer
  • Please answer the answer correctly
    13·1 answer
  • A rectangular park is 40 m long and 24 m wide. A path 3m wide is constructed outside the park. Find the area of the path?
    8·1 answer
  • A spinner with 4 colors is spun for a total of 50 trials. Yellow was selected 10 times. What is the experimental probability of
    6·2 answers
  • Compare using &gt; (greater than) , = (equal) , or &lt; (less than). 3 _____ -3 12 _____ 24 -12 _____ -24 5 _____ -5) 7.2 _____
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!