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
zvonat [6]
3 years ago
15

-11k-9(9+k)=-11(1+5k) solve the equation

Mathematics
2 answers:
Lubov Fominskaja [6]3 years ago
8 0
Multiply by the number outside the parenthesis.

-11k - 9(9+k) = -11(1+5k)
-11k - 81 - 9k = -11 - 55k

combine like terms

-11k - 9k + 55k = 81 - 11
35k = 70
k = 70/35
k = 2
NeTakaya3 years ago
7 0
The answer to your equation is k=2
You might be interested in
8.9 - 1.4x + 6.5x + 3.4<br> PLEASE HELP
jekas [21]

Answer: is 10

Step-by-step explanation:input :

Changes made to your input should not affect the solution:

(1): "3.4" was replaced by "(34/10)". 4 more similar replacement(s)

STEP

1

:

17

Simplify ——

5

Equation at the end of step

1

:

89 14 65 17

((——-(——•x))+(——•x))+——

10 10 10 5

STEP

2

:

13

Simplify ——

2

Equation at the end of step

2

:

89 14 13 17

((——-(——•x))+(——•x))+——

10 10 2 5

STEP

3

:

7

Simplify —

5

6 0
3 years ago
The number of loaves of bread purchased and the total cost of the bread in dollars can be modeled by the equation c = 3. 5b. Whi
Allisa [31]

You can use the fact that number of breads purchased cannot be negative since a customer either buys them or not and usually do not sell to the shopkeeper.(if somehow they end up selling to shop owner, then yes that will go in negative, but we'll assume it is wrong in most cases as generally shop owners are there to sell stuffs).

The third table of values matches the equation and includes only viable solutions.

<h3>What is a viable solution here?</h3>

It is talking about those solutions which are seen in real world. As stated above, a customer either buys the bread or not, thus number of breads sold will be either positive or 0(in case of no selling). Thus, we cannot have number of breads as negative.

Such solutions which are correct in the real world context here are called here as viable solutions.

<h3>Checking one by one all the tables for them being matched with table and viability</h3>

For first table, the number of breads are in negative, thus it is not going to have viable solution.

For second table, we have:

b = 0 thus c = 3.5b = 3.5 times 0 = 0 which is correctly given in second column.

b = 0.5, thus c = 3.5b = 3.5 times 0.5 =1.75 which is correctly given.

b = 1, thus c= 3.5 times 1 = 3.5 which is correctly given

b = 2001.5 thus c = 3.5 times 2001.5  = 7005.25 which is not correctly given, thus wrong.

For third table, we have:

b = 0, thus c = 3.5 \times 0 = 0, correctly given in second column.

b = 3, thus c = 3.5 \times 3 = 10.5, correctly given.

b = 6, thus c = 3.5 \times 6 = 21, correctly given.

b = 9, thus c = 3.5 \times 9 = 31.5, correctly given.

Thus, the third table of values matches the equation and includes only viable solutions.

Learn more about purchasing to cost relation here:
brainly.com/question/13727919

8 0
3 years ago
What is the exact circumference of a circle with a radius of 15 cm?
denis-greek [22]

Answer:

(C) 30πcm

Step-by-step explanation:

In order to find circumference you use the formula C (circumference)=2(pi)(r) in which r is the radius. In this case, two and 15 are thirty so to find the circumference all you have is the equation 30 times pi centimeters is equal to the Circumference.

6 0
2 years ago
Find the height of a cone when its diameter is 8 inches and the volume is 100 cubic inches
Aloiza [94]

Answer:

\frac{75}{4\pi } inches or approximately 5.97 inches  

Step-by-step explanation:

Use the cone volume formula: V = \pir²\frac{h}{3}

The diameter is 8 inches, so the radius will be 4 inches.

Plug in the radius and volume, and solve for h

V = \pir²\frac{h}{3}

100 = \pi(4²)(\frac{h}{3})

100 = 16\pi\frac{h}{3}

Divide each side by 16\pi

\frac{25}{4\pi } = \frac{h}{3}

Cross multiply and solve for h:

4\pih = 75

h = \frac{75}{4\pi }

So, the cone's height is \frac{75}{4\pi } or approximately 5.97 inches  

7 0
3 years ago
A swimming pool in a certain resort is enjoyed by people because it has a floor measurement of 8 ft by 12 ft and a depth of 9 ft
Ilia_Sergeevich [38]

Answer:

864 ft3

Step-by-step explanation:

length = 12 ft

width = 8 ft

depth = 9 ft

Volume = ? = length * width * depth

3 0
2 years ago
Other questions:
  • A drama class has a total of 26 students. The number of males is 6 more than the number of females. How many males and how many
    5·1 answer
  • What is the slope of the line that passes through the points(7,-9) and (15,-29)?
    11·1 answer
  • Veronica Foaley sells evening jackets sewn with metallic threads and beads. She wants to set a price of $600 for a jacket. The m
    15·2 answers
  • A triangular pyramid has a base area of 24 square meters and a height of 4 meters. What is the volume of the pyramid?
    8·1 answer
  • If two lines are perpendicular, their slopes are negative reciprocals.<br> A. True<br> B.False
    10·2 answers
  • After stepping into a room with unusual lighting, Bridgette's pupil has a radius of 3 millimeters. What is the pupil's diameter?
    10·1 answer
  • Graph ​x≥2​.
    5·1 answer
  • Can someone help me with this? Right answer gets brainliest!! :)
    11·2 answers
  • PLEASE HELP ME PLEASE
    5·2 answers
  • Okcps.org bookmarks
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!