Ask question

Ask question

All categories

kolbaska11 [484]

3 years ago

6

A student's course grade is based on one midterm that counts as 20% of his final grade, one class project that counts as 20%

of his final grade, a set of homework assignments that counts as 30% of his final grade, and a final exam that counts as 30% of his final grade. His midterm score is 64, his project score is 80, his homework score is 94, and his final exam score is 77. 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.

1 answer:

Rus_ich [418]3 years ago

5 0

Answer:

His overall final score is 80.1.

His letter grade is a B.

Step-by-step explanation:

To find his grade, we multiply each grade by it's weight.

Grades and weights:

His midterm score is 64. The midterm counts 20% = 0.2.

His project score is 80. The project score counts 20% = 0.2.

His homework score is 94. The homework score counts 30%.

His final exam score is 77. It counts 30%.

What is his overall final score?

64*0.2 + 80*0.2 + 94*0.3 + 77*0.3 = 80.1

His overall final score is 80.1.

What letter grade did he earn (A, B, C, D, or F)?

At least 80 but less than 90 is a B. He scored 80.1, so his letter grade is a B.

You might be interested in

What is the area of sector GPH?

riadik2000 [5.3K]

Answer:

Area of GPH = pi x 15^2 x 40/360 = 78.54 (yd2)

Hope this helps!

3 0

3 years ago

Read 2 more answers

Prove that there are no solutions in integers x and y to the equation 2x^2 + 5y^2 = 14

iren [92.7K]

Solve the equation for y using the formula for slope: y + mx + b

2x^2 + 5y^2 = 14
5y^2 = -2x^2 + 14
y^2 = -2/5x^2 + 14/5
y = the sq root of -2x^2/5 + 14/5

There is no integer solution to the square root of a negative number.

5 0

3 years ago

Kelly has 245 golf balls. Round this number to the nearest ten.

katen-ka-za [31]

250 is the correct answer for this problem

7 0

3 years ago

Can someone help me with this?

faltersainse [42]

Hello, the answer should be A,B and D options.

First, let's edit the given equations option-by-option.

<h2>Option A:</h2>

$-5x+12=5x+12$

$-5x-5x=-12+12$

$-10x=0$

$x=0$

There is only one solution which is $x=0$ .

<h2>Option B:</h2>

$-5x+12=5x-5$

$-5x-5x=-12-5$

$-10x=-17$

$x=\frac{17}{10}$

There is only one solution which is $x=\frac{17}{10}$ .

<h2>Option C:</h2>

$-5x+12=-5x-12$

$-5x+5x=-12-12$

$0\neq -24$

In Math, zero is <u>not equal to</u> minus twenty four ( $0\neq -24$ ) that's why we do not have any solution in this equation.

<h2>Option D:</h2>

$-5x+12=-12x-12$

$-5x+12x=-12-12$

$7x=-24$

$x=-(\frac{24}{7} )$

There is only one solution which is $x=-(\frac{24}{7} )$

8 0

2 years ago

HELP ME PLEASE :(

Alina [70]

Correct option D) 1,185.6 inches cubed .

<u>Step-by-step explanation:</u>

Here we have , A triangular prism. The triangular base has a base of 12 inches and height of 10.4 inches. The height of the prism is 19 inches. We need to find the volume of the triangular prism .Let's find out:

We have following parameters :

$b=12 inches\\h=10.4inches\\l=19inhes$

We know that , Volume of triangular prism is :

⇒ $Volume = \frac{1}{2}b(h)(l)$

⇒ $Volume = \frac{1}{2}12(10.4)(19)$

⇒ $Volume = 6(10.4)(19)$

⇒ $Volume = 1,185.6in^3$

Therefore , Correct option D) 1,185.6 inches cubed .

5 0

3 years ago

Read 2 more answers