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
jeyben [28]
3 years ago
12

-6+k÷5=-9 how do we work this out

Mathematics
1 answer:
Step2247 [10]3 years ago
3 0
First you have to multiply both sides by -5 which means you will multiply -5 by 6, -5 by k/5, and -5 by 9... So it should look like: -5×6+-5×k/5=-5+9.. after that.. it should look like -40+k=-45.. because the 5's in k/5 cancel out.. so then it should now look like k=-45+30... you subtract.. and k=-15
You might be interested in
How do I solve this?
xenn [34]
Don't you have the answer on their already
4 0
3 years ago
In the month of June, the temperature in Johannesburg, South Africa, varies over the day in a periodic way that can be modeled a
Art [367]

Answer:

The answer is "\bold{T = - 7.5 \cos \frac{\pi}{12}( t - 4 )+ 10.5}"

Step-by-step explanation:

Given value:

Temp-maximum=18^{\circ}  

Temp. minimum = 3^{\circ}

It is halfway between 10 am and 10 pm to 4 am.  

The sinus and cosine roles could be used throughout the year to predict fluctuations in climate models. Its type of formula that can be used to model such information is:  

T = A \cos B(t-C) + D, where parameters are A, B , C, D, T is the ° C temperature and t is the time (1-24)

A = amplitude = \frac{(T_{max} - T_{min})}{2}\\\\

                       = \frac{(3 - 18)}{2}\\\\= - \frac{15}{2}\\\\ = -7.5

B = \frac{2 \pi}{24}\\\\

   = \frac{\pi}{12}

C = \text{ units translated to the right}= 4

D = y_{min} + amplitude = units \ translated \ up\\\\

D = 7.5 + 3 = 10.5

Its trigonometric function equation that model temperature T hours after midnight in Johannesburg t.

T = - 7.5 \cos \frac{\pi}{12}( t - 4 )+ 10.5

6 0
3 years ago
The following data points are the number of games pitched by each of the Greenbury Goblins' starting pitchers last season.
Leviafan [203]

Answer: 1.87 games

Step-by-step explanation:

step 1 ; x= 3+2+4+7 divide 4 = 16/4 = 4 games

5 0
3 years ago
Two cones are similar. The volume of the larger cone is 27 cm³ and the volume of the smaller cone is 8 cm³. The height of the sm
EastWind [94]
The height of larger will be 3 cm
As, 
= ∛8 cm³ * 27 cm³ / (2 cm) ³
= 3cm
8 0
3 years ago
I really need help I have 20 minutes
nlexa [21]

Answer:

a. -1.7

b. -1.2

c. -0.5

d. 0.6

e. 1.1

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • Is 60% greater than 5/9
    5·1 answer
  • I WILL RATE YOU BRAINLIEST. I REALLY NEED HELP!!! I already tried 12.8 but that didn't work
    9·2 answers
  • The table of vaules represents a linear function g(x) where X is the number of days that have passed and g(x) is the blance in t
    5·1 answer
  • Use multiplication to rename 3/4
    13·1 answer
  • Given the side measurements, classify the triangle as acute, right, obtuse, or not a triangle.
    11·1 answer
  • Find the solution of the system of equations.<br> -3x – 2y = -6<br> 7x + 6y = 26
    15·1 answer
  • One cup holds 100 grams of sugar. How many cups will hold half a kilogram of sugar?
    6·2 answers
  • What is 7,599 divided 17.
    10·1 answer
  • In a class of 33 students, the ratio of girls to boys is 6:5. How many are there
    5·1 answer
  • How many solutions does this equation have?<br><br> 10 − 8d = –10d
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!