Question

Asked Feb 18, 2019

In one class, homework is worth 25% of the final grade, each of 3 projects is worth 20%, and a final exam is worth 15%.

(a)

If a student has an 83 homework average and a 95 on the first project, what is the student's grade at this point?

(b)

If a student gets a 78 on the second project and a 76 on the third project, what is the lowest grade the student can get on the final exam to get an 80 overall in the course?

Sum(weight k *xk/ Sum(weight k)

Step 1

__Given:__

The worth of homework and the final exam is 25% and 15%, respectively.

The worth of each 3 project is 20%.

Step 2

(a)

__Calculation:__

It is given that the student’s homework average and the first project is 83 points and 95 points, respectively.

Thus, the grade is calculated as

Step 3

(b)

To obtain the lowest grade in final exam, so that his overall grade is 80.

*Calculation:*

It is given that the student’s point on second and thi...

Tagged in

Q: Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worke...

A: Let the first mechanic charged $x per hour. And the second mechanic charged $y per hour. Given that ...

Q: if x<0 and y>0, determine the sign of the real number. 1 (a) xy (b)x2y (c) x/y +x (d) y-x

A: Calculation:(a)The condition on given real numbers are x<0 and y >0.That is, the condition x&l...

Q: Write as a single fraction. Simplify your answer as much as possible. (3v/v2+5v-14)-(4/v2+4v-21)+(3/...

A: The given fraction is (3v/v2+5v-14)-(4/v2+4v-21)+(3/v2-5v+6).

Q: Suppose that you earned a bachelor’s degree and now you’re teaching high school. The school district...

A: To calculate (a) The amount which is saved at the end of 5 years. (b) The amount of interest. If the...

Q: Hello, looking for the easiest steps to solve 2 and 3 step multiplication questions. For example 275...

A: To multiply a three-digit number with a two-digit number follow the given steps.The numbers to be mu...

Q: Solve the exponential equation by expressing each side as a power of the same base and then equating...

A: We use 4=2^2 and 8=2^3

Q: Sketch the graph of the quadratic function f (x) = x 2 + 3x + 1 4 without using a graphing utility. ...

A: Given,

Q: Find f(g(x)) and g(f(x)) and determine whether the pair of functions f and g are inverses of each ot...

A: Consider f(g(x)) and plugging the values:

Q: A car is purchased for $31,000 . Each year it loses 30% of its value. After how many years will the ...

A: Let the depreciated amount be represented by D(t). then according to the given condition.