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
MA_775_DIABLO [31]
3 years ago
9

The mean of Fred’s grades on five tests was 75.2. The grades on the first 4 of these tests were 87, 84, 88, and 45. Find the gra

de on his fifth test.
Mathematics
2 answers:
love history [14]3 years ago
7 0

Answer:

72

Step-by-step explanation:

mean x number of total test scores -> 75.2 x 5=376

sum of the four test scores given -> 304

difference of the two numbers -> 376- 304= 72

the missing test score, therefore the answer is 72.

kaheart [24]3 years ago
5 0
88+87+84+45 = 304
304+x/5=75.2
You might be interested in
SARAH MAKES 7 MEIKLES TO RAISE MONEY FOR A CHARITY.SHE CAN MAKE 7 MEIKLES IN a DAY AND ALREADY HAS 4 MEIKLES MADE.
OlgaM077 [116]
It would be 130/7+4 because 130 is the total divide it by how many she does and add how many she already has
6 0
3 years ago
Maggie is displaying paperback and hardback books on her book shelf. The ratio of hardback books to total books is 5 to 13. Whic
lubasha [3.4K]

Answer:

Total Paperback books = 8x , where x is any positive number

Step-by-step explanation:

Let

The total books are = 13x   ; where x is any positive number

As given,

The ratio of hardback books to total books is 5 to 13.

⇒Hardback books = \frac{5}{13}× Total books

⇒Hardback books = \frac{5}{13}× 13x = 5x

So, Paperback books = Total books - Hardback books

                                    = 13x - 5x

                                    = 8x

⇒Total Paperback books = 8x

8 0
2 years ago
Write a number sentence to represent the model. Explain how you determined the number sentence.
vampirchik [111]

90 % sure

The image attached shows an operation that can be represented with whole numbers, becuase there are positive and negative characters.

So, we know by given that there are +4 circles and -7 circles, and the whole can be expressed as the algebraic sum of them,

Therefore, the model can be represented by the number -3, which is the whole because is the result of the operation that represent each type of element.

hope i helped

-lvr

4 0
3 years ago
Which of the following is the solution of 5x – 6 = 44?
nata0808 [166]

Answer:

x = 10

Step-by-step explanation:

5x - 6 = 44

Add 6 on both sides of the equation.

5x = 50

Divide by 5 on both sides of the equation.

x = 10

So, the value of x is equal to 10

7 0
3 years ago
Read 2 more answers
-6m+5p+7+8m-10<br> Help me
nikklg [1K]

Answer:

add like terms the simplified answer is 2m+5p-3

Step-by-step explanation:

lmk if it is not supposed to be simplified

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is (2,3) (4,1) (6,2) and (3,5) reflected across the y-axis ?
    8·1 answer
  • 5.4 = a - (-1.8) solve for a.
    5·2 answers
  • What's 905,154 rounded to the ten thousands // 89,659 rounded to the hundred thousands
    7·1 answer
  • In the recursive formula f(n) = f(n - 1) + 5, the value of the previous term is represented by
    15·1 answer
  • Solve for x<br> 3x - 2/ 3x + 1
    5·2 answers
  • Domain: {4, 0} range: (-2, 0, 2}
    7·2 answers
  • in the game the probability of a player losing is 0.3 what is the probability of a player winning the game​
    10·1 answer
  • Pls helllp!!!
    11·2 answers
  • Which trigonometric identity is given by the formula adjacent side/opposite side?
    6·1 answer
  • Ben participated in a diving competition from a platform 25 feet above the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!