A​ student's course grade is based on one midterm that counts as ​% of his final​ grade, one class project that counts as ​% of his final​ grade, a set of homework assignments that counts as ​% of his final​ grade, and a final exam that counts as ​% of his final grade. His midterm score is ​, his project score is ​, his homework score is ​, and his final exam score is . What is his overall final​ score? What letter grade did he earn​ (A, B,​ C, D, or​ F)? Assume that a mean of 90 or above is an​ A, a mean of at least 80 but less than 90 is a​ B, and so on.

Answers

Answer 1

Answer:

The overall score is 75.6

Letter grade is C

Step-by-step explanation:

The question has missing details (See comment section for complete question).

From the complete question, we have:

Proportion:

[tex]Midterm = 15\%[/tex]

[tex]Project = 25\%[/tex]

[tex]Assignment = 40\%[/tex]

[tex]Exam = 20\%[/tex]

Scores

[tex]Midterm = 66[/tex]

[tex]Project = 90[/tex]

[tex]Assignment = 75[/tex]

[tex]Exam = 66[/tex]

Solving (a): The overall score

To do this, we simply calculate the mean of the given data.

The mean is calculated by multiplying each proportion by the scores..

So, we have:

[tex]Overall = 15\% * 66 + 25\% * 90 + 40\% * 75 + 20\% * 66[/tex]

[tex]Overall = 9.9 + 22.5 + 30 + 13.2[/tex]

[tex]Overall = 75.6[/tex]

Solving (b): The letter grade

From the question, we have:

[tex]A: Mean \ge 90[/tex]

[tex]B: 80 \le Mean < 90[/tex]

[tex]C: 70 \le Mean < 80[/tex]

The overall score falls in the following category:

[tex]C: 70 \le Mean < 80[/tex]

Because:

[tex]70 \le 75.6 < 80[/tex]

Hence, the letter grade is C


Related Questions


What is the slope of the line?

Answers

Answer:

-3

Step-by-step explanation:

First, you look at which way it is going. From left to right, the line is going down, so the slope is negative. Change in y is 3 and change in x is 1. From any two points on the line, the y value changes by 3 every time the x value changes by 1.

Answer:

-3

Step-by-step explanation:

slope = rise/run

rise = vertical distance

run = horizontal distance

Step 1. Find two easy to read points on the line. Use points on intersections of grid lines.

For example, choose points (0, -3) and (-1, 0).

Step 2. Start at one point, say (0, -3). We must go to the other point using only vertical and horizontal moves. Go up 3 units. That is a rise of +3. It's positive 3 since up is positive. Now go left 1 unit. That is a run of -1. It is negative because going left is negative.

Step 3.

slope = rise/run

slope = 3/(-1) = -3

Answer: slope = -3

Daniel has 54/3 CUPS of ice in the ice maker to use to make smoothies for his friends. He uses 2/3 of ice for each smoothie. How 3 cups many friends can have a smoothie?

Answers

Answer:

27

Step-by-step explanation:

i might be wrong if I'm wrong try 9 as the answer

Answer:

i think 9 i might be wrong

Step-by-step explanation:

Which of these can not form a perpendicular bisector?
O A. a line segment
O B. a circle
O C. a pair of parallel lines
O D. a right triangle

Answers

B. Is the correct answer. A circle can not form a perpendicular bisector as it is rounded and not straight.

The solution is : Second option is correct. O B. a circle, can not form a perpendicular bisector.

What is circle?

A circle is a closed two-dimensional figure in which the set of all the points in the plane is equidistant from a given point called “centre”. The perimeter around the circle is known as the circumference.

here, we have,

Since we know that to form perpendicular bisector .

We need atleast two lines which form right angle.

So, right triangle can form perpendicular bisector with base and height.

Parallel lines can also form perpendicular bisector if a line is drawn from mid point of one line to mid point of another line.

A line segment can form perpendicular bisector.

But circle can't as it is curved shape it needs line to make perpendicular bisector.

Hence, Second option is correct. O B. a circle, can not form a perpendicular bisector.

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The function P(h)= 2h- 15 represents the profit a company makes selling h hot dogs. Which is the most appropriate domain of the function?
a : all positive intergers
b : all positive real numbers
c : all positive rational numbers
d : all positive irrational numbers

Answers

The requried most appropriate domain for the function P(h) would be the set of all non-negative real numbers. The domain is b, all positive real numbers.

What is a domain?

The domain is defined is a set of values of the independent variable for which there is a certain value of the dependent variable exists in the range of the function.

The function P(h) = 2h - 15 represents the profit a company makes selling h hot dogs. In general, the domain of a function represents the set of all possible input values for which the function is defined.

In this case, the function can be defined for any non-negative value of h, since the company can sell any number of hot dogs, including zero. However, the function may not be defined for negative values of h, since it does not make sense to talk about selling a negative number of hot dogs.

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Write an example of a composition of rigid
motions for APQR.

Answers

Answer:

To review, the rigid motions are translations (slides), rotations (spins/turns), and reflections (flips). All of these types of motions occur without changing the shape of the object or figure being moved.

Step-by-step explanation:

can anyone help me with this​

Answers

Answer:

1. 7

2. 3

3. 105

49/7 = 7 which means 7 shot equals 1 minute

just need answer please help

Answers

Answer:

41 ft

Step-by-step explanation:

We can start by first finding the area of the top square

3*3=9

then we can find the area of the bottom rectangle

4*8=32

then we can add them together

32+9=41

Can I have Brainliest please :)

Answer:

53 [tex]ft^2[/tex]

Step-by-step explanation:

We can find the area of the figure by adding the areas of the square and the rectangle.

Area of square:

3 x 3 = 9 squared ft

Area of rectangle:

4 x (8 + 3) = 4 x 11 = 44

Add the areas:

9 + 44 = 53

The area of the figure is 53 squared feet.

Which of the following relations is a function? A. (7, 1), (-2, 4), (3, 1), (7, 2) B. (3, 4), (-2, 6), (3, 3), (-7, 2) C. (3, 4), (-2, 2), (7, 1), (-7, 2) D. (3, 0), (-2, 3), (7, 1), (-2, 5)

Answers

Answer: B I believe

Step-by-step explanation:

A teacher takes her nephew shopping. She tells her nephew that they can spend x dollars knowing

that 16x = 641.6.

What operation does the nephew need to use to find how much money they can​ spend?

Choose the correct answer below:

A.Addition


B. Division


C. Multiplication


D. Subtraction

Answers

Answer:

division

Step-by-step explanation:

division so as to find the value of x

Which of the following functions has an exponential growth of 3%?
A. f(x) = 1500(0.03)^x
B. f(x) = 2500(3)^x
C. f(x) = 975(1.03)^x
D. f(x) = 300(0.97)^x

Answers

C because when we write exponential growth equations we do a(1+r)^x. 3 percent is 0.03. 1+0.03 is 1.03. Only C has the growth rate what we want. You are welcome :)

What is the area of sector GPH?

Answers

Answer:

28.26

Step-by-step explanation:

A = area of a sector

π = 3.14

r = 9

θ = 40

A=πr²*θ/360=3.14*81*40/360=28.26


What is the perimeter, to the nearest hundredth of a unit, of polygon
ABCDE ?

Answers

Step-by-step explanation:

answer is 20.31

I'm positive

which of the numbers in the universe has no reciprocal?

Answers

Answer:

0 is the only number without a reciprocal

Today, everything at a store is on sale. The store offers a 20% discount. Write an expression that shows the discount price of an item that costs x dollars. ​

Answers

Answer:

0.8x dollars

Step-by-step explanation:

Answer:

Step-by-step explanation:

80%*x = 0.8x

I’m doing a map test for math

Answers

Answer:

good luck

Step-by-step explanation:

Cool? I guess but those are awful haha I’m in one to

what is the value of X

Answers

Answer: It is 250

Step-by-step explanation: you would add 40 and 70 together which is 110 and then you would subtract 360 from 110 and you answer would be 250.

Answer:

x = 125

Step-by-step explanation:

Kindly check the image below

The problem we are looking at gives us the value of two intercepted arcs and wants us to find x ( which is an interior angle )

According to the image we can find an interior angle by adding the two intercepted arcs and then dividing the sum by 2

( Note that we are not given the direct intercepted arcs  of x. We are given the intercepted arcs of x's supplementary angle )

That being said we need to find x's supplement in order to find x

Using the image below as a reference

x's supplement = [tex]\frac{70+40}{2}[/tex]

[tex]70 + 40 =110\\\frac{110}{2} =55[/tex]

So x's supplement = 55

Now to find x

Remember that supplementary angles have a sum of 180°

That being said we can find the missing angle (x) by subtracting the given angle (55) from 180

so x = 180 - 55

180 - 55 = 125

Hence x = 125

Item 4
Which statement is true?

A pound is 8 times as heavy as an ounce.

A pound is 10 times as heavy as an ounce.

A pound is 12 times as heavy as an ounce.

A pound is 16 times as heavy as an ounce.

Answers

It’s the last one. There’s 16 ounces in a pound.

A number more than 4

Answers

Answer:

5

Step-by-step explanation:

NO LINKSS!!! HELPP ME PLSSSSSSS I NEED IT NOW PLSSS. How could you calculate the x-coordinate of the midpoint of a horizontal
segment with endpoints at (0,0) and (20,0)?

Answers

Answer:

the answer I say would be correct would be D

what do you need to find in order to solve a system

Answers

could you post a picture of the question? we dont have enough context

Answer:

A system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. The solution of such a system is the ordered pair that is a solution to both equations. To solve a system of linear equations graphically we graph both equations in the same coordinate system.

Will give crown help

Answers

Answer:

First one is linear

2. Scattered

3. Leniar

4. Porabola

Step-by-step explanation:

For the graph, what is a reasonable constraint so that the function is at least 600?

Please only submit REAL answers WITH an explanation as to why you chose it!

graph of y equals minus 2 times the square of x plus 40 times x plus 600


A- −10 ≤ x ≤ 30
B- x ≥ 0
C- All real numbers

Please right answers only!

Answers

Answer:

I remember taking this too. So, the correct answer is A! I SWEAR ITS RIGHT!

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

in rectangle ABCD, the slope of AB is 1/2. whatvis the slope of CD?

(easy question, easy points)​

Answers

AB = CD

½ = ½

So option C is right

Option (3) is correct. The slope of CD = 1/2.

What is rectangle?

"A Rectangle is a four sided-polygon, having all the internal angles equal to 90 degrees, opposite sides are parallel and adjacent sides are perpendicular.

For the given situation,

Consider the rectangle ABCD,

The slope of [tex]AB=\frac{1}{2}[/tex]

The slope of parallel sides are equal. Here AB and CD are parallel sides.

So, slope of [tex]AB=CD[/tex].

Hence we can conclude that the slope of CD = 1/2. So, option (3) is correct.

Learn more about rectangle here

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What’s the answer for this problem ?

Answers

Answer:

theta = 0.245 radian or 14 degrees

Step-by-step explanation:

Note that the tangent of the angle theta is opp/adj = 12/48 = 1/4.

Using the inverse tangent function on a calculator, evaluate the above:

tan theta = 1/4 = 0.25.  Then theta = 0.245 radian or 14 degrees, approximately

Is the relation y = 3x + 1 linear or non-linearrrrrrrrrrr???????????

Answers

Answer:

linear

Step-by-step explanation:

Answer:

non linear

Step-by-step explanation:

please help, dont answer if you dont know

Answers

Answer:

Step-by-step explanation:

A. 1/3

divide $50 in the ratio 2:3​

Answers

Answer:  2:3=5

$50=5 units

divide both sides by 5

$10=1unit

times 2 both sides

$20=2 unit

if we times 3 of $10=1 unit

$30=3 unit

divided it is $20:$30

→ Hope this helps ←

There are 14 cans of soup in a pantry, 7 of which contain vegetable beef soup. What is the probability that a randomly selected can will be vegetable beef soup? Write your answer as a fraction or whole number.​

Answers

Answer:

1/2

Step-by-step explanation:

There is a 7 in 14 chance of randomly selecting a can of vegetable beef soup. In fraction form, that would be a 7/14 chance. Simplifying the fraction would bring us to 1/2, our final answer.

what two numbers multiply to 15 and add to -8?

Answers

Answer:

-3 and -5

Step-by-step explanation:

because two negatives equal a positive

idek if this is correct

sorry if its not

A rectangular painting is 2 feet long and 56 foot wide. Which is the area of the painting?
A. 1 2/3
B. 2 5/6
C. 3 1/3
D. 5 2/3

Answers

Answer:

I'm pretty positive it should actually be 112.

Step-by-step explanation:

You find the area of a rectangle by multiplying length times width. I don't know how else to explain that all of the answers are incorrect.

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