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
vredina [299]
3 years ago
11

Abby test scores were 95 82 78 and 88 is the estimate of her average test score 90 85 70 75

Mathematics
1 answer:
nataly862011 [7]3 years ago
4 0

Answer:

85

Step-by-step explanation:

Given data

Abby test scores 95, 82, 78, 88

We see that the number of test

n is 4

Hence the average test score is

Average score = ∑scores/n

Average score = 95+82+78+88/4

Average score = 343/4= 85.75

≈ the average test score is 85

You might be interested in
-0.85 - (-¼) + 0.4 + (-⅖) ?<br> what is the value of the expression?
drek231 [11]

Answer: =−3/5

Step-by-step explanation: Hope this help :D

6 0
2 years ago
Felicia places a rectangular rug that measures 10 feet by 11 feet in a triangular room with a base of 30 feet and height of 22 f
arsen [322]

Answer:

1. Area of rectangular rug is 110 ft^{2}

2. Area of triangular room is 330ft^{2}

Step-by-step explanation:

This problem bothers on the mensuration of flat shapes, rectangle and triangle.

step one

let us start by solving for the area of the rectangular rug

given data

Area A =  ?

Length l =  11 ft

Width w=  10 ft

we know that the area of a rectangle is expressed as

Area=Length * Width

substituting our given data we have

Area= 11*10\\Area= 110 ft^{2}

step two

let us  solve for the area of the triangular room

given data

Area A =  ?

base b =  30 ft

height  h=  22 ft

we know that the area of a triangle is expressed as

Area= \frac{1}{2} *base* height\\

substituting our given data we have

Area= \frac{1}{2} * 30* 22\\Area=\frac{660}{2} \\Area= 330 ft^{2}

8 0
3 years ago
Jackie ordered a set of wood and metal clothes pins. Of the 276 pins, 172 were wood. What percentage of the clothes pins were me
timurjin [86]

We know that 172 of them were wood, so the rest are metal. To find that number we do:

276 - 172 = 104 metal pins.

To find the percentage that they were metal, take the number of metal pins and divide by the total number of pins:

104/276 is about 0.3768.

Multiply this by 100:

37.68

So, the percent of metal pins is 37.68%.

8 0
3 years ago
PLS HALP I'm stuck on number 31
Marta_Voda [28]
There are 2 possibilities for where A can be: one where C is 30° (and A is 60°) and another where C is 60° (and A is 30°). Since it's not specified, we can find both.

30°:
drawing the triangle on a graph, you can see that point C is 4 units above point B, so we know that one side of the triangle is 4. Once we find the other "leg" of the triangle (the one that's parallel to the x-axis), we can just add that value to B to find the x coordinate of A.
If angle C is 30°, using the side ratios of a 30-60-90 triangle, that side is "a√3", and the side we're looking for is a. So, to find a, we just divide 4 by √3. In that case, point A is 4/(√3) units to the right of -2√3. We can rationalize 4/(√3) like this:

(4√3)/3

and then add that to 2√3:

(4√3)/3 + -2√3

(4√3)/3 + (-6√3)/3 = (-2√3)/3

We know that the x-coordinate of A is (-2√3)/3, and the y-coordinate is -1 because B is a right angle and we're just moving horizontally. So, if C is 30° and A is 60°, point A is at ((-2√3)/3, -1).

60°:
in this case, the leg we know is "a" and the leg we're looking for is "a√3". So, we can multiply 4 by √3 to get the distance from B:

4 x √3 = 4√3

4√3 + -2√3 = 2√3

So the x-coordinate of A here is 2√3, and the y-coordinate is still -1: (2√3, -1).

hope that helps! if you liked this answer please rate it as brainliest!! thank you!!!

8 0
3 years ago
Helopppppppppppp meeeeeeee
Nina [5.8K]

Answer:

The answer is B

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • How many inches are there in 32 feet?
    15·2 answers
  • ***Please Help***
    11·1 answer
  • ?????????????????????<br> Helpppp please
    15·1 answer
  • Which of the following is the solution to the equation 25(z + 2) = 125 ?
    15·2 answers
  • X + 3= -x -5<br><br>what's x?​
    12·2 answers
  • Show that b^2 is greater than equal to or less than ac, according as a, b, c are in A.P., G.P.
    13·1 answer
  • Student spend 5 minutes of every 60 minutes at school moving from class to class. Which fraction is equivalent to the number of
    12·1 answer
  • Need some help on my math
    15·1 answer
  • I need help thank you
    6·1 answer
  • Write an equation of the line with the given properties. Your answer should be written in standard form.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!