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
docker41 [41]
3 years ago
13

Can some one help me i have no idea how to do this

Mathematics
1 answer:
pashok25 [27]3 years ago
6 0

Answer:

k=-7

Step-by-step explanation:

Okay,

2/7k-3/8=-19/8

       +3/8 +3/8

--------------------------

   2/7k=   -2

   -------    -------

     2/7       2/7

k=-7

To check do 2/7(-7) -3/8

                         -2 -3/8

and u get -2 3/8 but then u do 8*2= -16+3= 19

You might be interested in
Clara brought 24 donuts for the office. If 6 of them were chocolate, what percent of the donuts were chocolate
mafiozo [28]
To find the percent, you have to divide 24/6 
24/6 = 0.25
Now you convert 0.25 to a percent. 
So move the decimal point 2 places to the right. 
= 25 %
5 0
3 years ago
Read 2 more answers
Please help: A box contains 5 yellow balls, 3 blue, and 1 red ball. Two balls are drawn at random. Find the probability that:
Y_Kistochka [10]

Answer:

a) 0.2778

b) 0.3611

c) 0.1389

d) 0.0833

Step-by-step explanation:

We have a total of 5 + 3 + 1 = 9 balls

a) First ball being yellow: we have 5 yellow balls, so P1 = 5/9

Second ball being yellow after one yellow was drawn: we have 4 yellows and 8 balls, so P2 = 4/8 = 1/2

Both yellows: P = P1 * P2 = 5/18 = 0.2778

b) Both blues:

P1 = 3/9 = 1/3

P2 = 2/8 = 1/4

P = P1 * P2 = 1/12 = 0.0833

Both yellows or both blues: 5/18 + 1/12 = 0.2778 + 0.0833 = 0.3611

c) First yellow: P1 = 5/9

Second red: P2 = 1/8

Pa = P1 * P2 = 5/72

or

First red: P3 = 1/9

Second yellow: P4 = 5/8

Pb = P3 * P4 = 5/72

P = Pa + Pb = 10/72 = 5/36 = 0.1389

d) First blue: P1 = 3/9 = 1/3

Second red: P2 = 1/8

Pa = P1 * P2 = 1/24

or

First red: P3 = 1/9

Second blue: P4 = 3/8

Pb = P3 * P4 = 1/24

P = Pa + Pb = 2/24 = 1/12 = 0.0833

8 0
3 years ago
What is the measure of
irinina [24]
Than answer you looking for is I think B
8 0
2 years ago
Select the expression that is equal to (9x + 3) – (5z - 7)
Shkiper50 [21]

Answer:

9x+10-5z

Step-by-step explanation:

(9x + 3) – (5z - 7)

9x+3-5z + 7)

<u>9x+10-5z</u>

6 0
3 years ago
If we have 9 candy bars and each student gets 1/3 candy barwith 10 students, how much of a sandwich does each student get? Expla
PSYCHO15rus [73]

Answer:

.......................................... k

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • What is the surface area of a sphere if its volume is 288π cubic inches? Leave your answers in terms of π. A. 216π in² B. 144π i
    7·1 answer
  • What is the perimeter of quadrilateral DOBC
    13·1 answer
  • April took out a $600 loan from the bank. At the end of 5 years, she pays back the principal, plus $60 simple. What was the inte
    11·2 answers
  • To the nearest hundredth, what is the length of line segment AB?
    11·1 answer
  • What 324568 x 951478
    11·1 answer
  • the distance between two planets in the solar system is 560,800 miles. express the distance in scientific notation
    8·1 answer
  • Jada has 12 pencils and 24 erasers. She wants to create identical groups. What is the
    9·1 answer
  • BRAINLIEST!!!!!!!!!!!!!!!!!!
    7·1 answer
  • Write <br> 0.925<br><br> as a fraction in simplest form.
    13·1 answer
  • A geometric sequence has an initial value of 9 and a common ratio of 5. What function could represent this situation?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!