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
Solnce55 [7]
3 years ago
11

In the DBE 122 class, there are 350 possible points. These points come from 5 homework sets that are worth 10 points each and 3

exams that are worth 100 points each. A student has received homework scores of 7, 8, 7, 5, and 8 and the first two exam scores are 81 and 80. Assuming that grades are assigned according to the standard scale, where if the grade percentage is 0.9 or higher the student will get an A, and if the grade percentage is between 0.8 and 0.9 the student will get a B, and there are no weights assigned to any of the grades, is it possible for the student to receive an A in the class? What is the minimum score on the third exam that will give an A? What about a B?
Mathematics
1 answer:
Lesechka [4]3 years ago
6 0

Answer:

a) The student cannot receive an A in the class.

b) The student must score 119 in the third exams to make an A.  This is clearly not possible, since he cannot make 119 in a 100-points exam.

c) The student can make a B but he must score at least 84 in the third exam.

Step-by-step explanation:

To make an A, the student must score 315 (350 x 90%) in both home and the three exams.

The student who scored 35 (7 + 8 + 7 + 5 + 8) in the homework and 161 (81 + 80), getting a total of 196, is short by 119 (315 - 196) scores in making an A.

To make a B, the student must score 280 (350 x 80%) or higher but not reaching 315.

B ≥ 280 and < 315.

Since, the student had scored 196, he needs to score 84 and above to make a B in the last exam.

You might be interested in
is picking out some movies to rent, and he has narrowed down his selections to 5 documentaries, 7 comedies, 4 mysteries, and 5 h
pogonyaev

Answer: 91

Step-by-step explanation:

Given : The number of documentaries = 5

The number of comedies = 7

The number of mysteries = 4

The number of horror films =5

The total number of movies other than comedy = 14

Now, the number of possible combinations of 9 movies can he rent if he wants all 7 comedies is given by :-

^7C_7\times^{14}C_2\\\\\dfrac{7!}{7!(7-7)!}\times\dfrac{14!}{2!(14-2)!}\\\\=(1)\times\dfrac{14\times13}{2}\\\\=91

Therefore, the number of possible combinations of 9 movies can he rent if he wants all 7 comedies is 91 .

5 0
3 years ago
Seven times the smaller
Taya2010 [7]

Given:

Seven times the smaller  of two consecutive even  integers  is the same as  -300 minus 4 times the  larger integer.

To find:

The integers .

Solution:

Let the smaller even integer be x.

So, larger even integer is x+2 because they are consecutive even  integers.

Seven times the smaller  integer = 7x

-300 minus 4 times the  larger integer = -300-4(x+2)

Now,

7x=-300-4(x+2)

7x=-300-4x-8

7x+4x=-308

11x=-308

Divide both sides by 11.

x=\dfrac{-308}{11}

x=-28

So, the smaller even integer is -28.

x+2=-28+2=-26

So, the larger even integer is -26.

5 0
3 years ago
The table below shows some inputs and outputs of the invertible function f with domain all real numbers.
Ratling [72]

Answer:

{f}^{ - 1} (f(93)) = 93

f(f(7)) =  - 15

Step-by-step explanation:

A function and its inverse has the following properties

{f}^{ - 1} (f(x)) = x

This implies that;

{f}^{ - 1} (f(93)) = 93

From the table,

f(7) =  - 6

This means that:

f(f(7)) = f( - 6)

f(f(7)) =  - 15

Note that: f(7) means the value of f(x) when x=7.

From the table f(x)=-6 when x=7.

That is why f(7)=-6.

5 0
3 years ago
What type of verb is the bold word? Little by little, the sky became cloudy.
Andrei [34K]
Hello There!

The word 'became' is a linking verb.

Hope This Helps You!
Good Luck :)
4 0
3 years ago
Read 2 more answers
Rewrite the following equation in slope-intercept form. 6x - 3y = 19​
tensa zangetsu [6.8K]

Answer:

y= 2x - 19/3

Step-by-step explanation:

6x-3y=19

3y=6x-19

y=2x- 19/3

slope: 2

y-intercept: -19/3

7 0
3 years ago
Other questions:
  • Fill in the blanks (ASAP- 30 points, must answer all)
    8·2 answers
  • Kai buys 6 fiction books and 4 nonfiction books.
    9·2 answers
  • Need help <br> ................
    5·1 answer
  • Evaluate if t=-2, x=3 and z=5
    8·2 answers
  • What is the simplified form of the quantity x over 3 minus y over 4 all over the quantity x over 4 plus y over 3?
    10·1 answer
  • Which relation is NOT a function? {(1, -5), (3, 1), (-5, 4), (4, -2)} {(1, -5), (-1, 6), (1, 5), (6, -3)} {(2, 7), (3, 7), (4, 7
    8·2 answers
  • For what Value of X is ABC~ DEF?​
    14·1 answer
  • Which relationships have the same constant of proportionality between "y" and "x" as the equation: y = 5/2x?
    12·1 answer
  • Use the following cell phone airport data speeds​ (Mbps) from a particular network. Find Q3.
    15·1 answer
  • Larry has a bowl of raspberries and blackberries. There are 2 more raspberries than blackberries, and there are 34 berries in al
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!