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
Anton [14]
3 years ago
14

Carlos has scored 83, 81, and 73 on his previous three tests. What score does he need on his next test so that his average (mean

) is 83 ?
Mathematics
1 answer:
disa [49]3 years ago
8 0

Answer:

95

Step-by-step explanation:

let x be his mark in the fourth test, then

mean = \frac{83+81+73+x}{4} = 83 ( multiply both sides by 4 )

83 + 81 + 73 + x = 332

237 + x = 332 ( subtract 237 from both sides )

x = 95


You might be interested in
Can u help with this one u know who u are
tatiyna
It's the one on the top righr, -2/9 w + 2/15.
8 0
3 years ago
Read 2 more answers
Expand and simplify 10-3(3x-2)​
JulijaS [17]

Answer:

−9+16

Step-by-step explanation:

1. 10−3(3−2)

10−9+6

2. Add the numbers

3. Rearrange terms

3 0
2 years ago
What is the midpoint of the vertical line segment graphed below? (2, 4), (2, -9) A. (4, -5). B. (2, -5/2). C. (2, -5). D. (4, 5/
omeli [17]

Answer:

B. (2, -\frac{5}{2})

Step-by-step explanation:

Given:

(2, 4) and (2, -9)

Required:

Midpoint of the vertical line with the above endpoints

Solution:

Apply the midpoint formula, which is:

M(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2})

Where,

(2, 4) = (x_1, y_1)

(2, -9) = (x_2, y_2)

Plug in the values into the equation:

M(\frac{2 + 2}{2}, \frac{4 + (-9)}{2})

M(\frac{4}{2}, \frac{-5}{2})

M(2, -\frac{5}{2})

8 0
2 years ago
Solve 3/4x+1/4y=5 for y​
Sergeeva-Olga [200]

Answer:

y=3x+20

Step-by-step explanation:

So first, I don't like fractions so I would multiply the whole equation by 4. This will make the equation 3x+y=20. Then you have to isolate the y to find the answer so you should subtract 3x from both sides. This will make the equation look like this y=-3x+20. Therefore, y=3x+20

8 0
2 years ago
−7×8=?????????????????????????
Nady [450]

Answer

the answer is -56

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Suppose a study estimated that 64% of the residents of a town (with an error range of +-12 percentage points at 95% confidence)
    15·1 answer
  • 6 bottles of soda cost $2.70. What is the unit rate for the cost per 1 bottle?
    15·2 answers
  • There are 20 people in a party. 4 of them left. Then, half of them left. How many people are left in the party?
    8·2 answers
  • The solution to the system -2x+5y=-15 and 5x+2y=-6 is what
    14·1 answer
  • The graph below is the graph of a function:
    5·1 answer
  • Compare numbers to their opposites based on their positions on a number line. Choose ALL true statements based on these comparis
    8·1 answer
  • helppppppppppppppppppppppppp me plz will MARK BRAINLIST THIS IS DO IN A FEW MINS!!!!!!!!!!!!!!!!!!!!!!!!!
    8·2 answers
  • What is this answer?
    7·1 answer
  • Which inequality has the solution shown below?<br> -18 -17 -16 -15 -14 -13 -12
    15·1 answer
  • There were 1125 books sold last week at Sid's Bookstore. The circle graph below summarizes these books by genre.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!