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
klio [65]
2 years ago
15

1/3k+80=1/2k+120 what does k equal?

Mathematics
1 answer:
LenaWriter [7]2 years ago
8 0

Answer:

k = -1/240

Step-by-step explanation:

to evaluate the value of k in the expression 1/3k+80=1/2k+120

we have

1/3k+80=1/2k+120

collect the like terms for easy evaluation

1/3k - 1/2k = 120 -80

1/3k - 1/2k = 40

find the lcm

2 - 3/6k = 40

-1/ 6k = 40

cross multiply

6k  x  40  = -1

240k = -1

divide both sides by 240

240k/240 = -1/ 240

k = -1/240

therefore the value of k in the expression 1/3k+80=1/2k+120 is equals to -1/240

You might be interested in
PLEASE HELP ILL GIVE BRAINLIEST!
amid [387]

Answer:

10 sides (decagon)

Step-by-step explanation:

You find the perimeter by adding up all the sides of a shape.

side + side + side + side... = perimeter

You know that <em>each</em> side is 4/5 centimeters. You also know that the perimeter is 8 centimeters.

<u>You can set up an equation like this:</u>

4/5 * number of sides = 8

<em>or you can write it in a simpler form as:</em>

4/5x=8

<u>Now solve it like a normal equation:</u>

5 * (4/5x) = (8) * 5

(4x) / 4=(40) / 4

x = 10

So, you know the shape has 10 sides that are 4/5 centimeters each.

7 0
2 years ago
Read 2 more answers
melissa bought a cake that cost $75 the sales tax rate is ten percent what is the total amount she paid for the cake
Nady [450]
Multiply, because the total price is ten percent more than the original:                            $75 x 1.1 = <span>$82.5</span>
6 0
3 years ago
A gas at standard temperature and pressure was measured as having a mass of 1485 grams (g) in a volume of 750 liters (L). Which
tangare [24]

Answer:

Here we will use the relation:

Density = mass/volume.

We know that:

Mass = 1485g

Volume = 750L

Density = 1485g/750L = 1.98 g/L

We do not have the options in order to select the correct one, but knowing this density, we can suppose the possible gases.

Two "common" gases with densities similar to this one are:

Carbon Dioxide, with d = 1.977 g/L

Dinitrogen Monoxide, with d = 1.977 g/L

In both cases, if we round up we will get the same density that we calculated at the beginning, so either of these can be the correct option.

6 0
3 years ago
Which of the following is the slope of the line passing through the
julia-pushkina [17]

Answer:

I think the slope is UNDEFINED

y²-y¹/x²-x¹

(-5)-(16)/(-12)-(-12)

-21/0

=Undefined

6 0
2 years ago
Write 8:136 in the form of 1:n
sergeinik [125]

Answer:

1:17

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • What is the quotient of 36,772 and 58 type your answer as a number
    6·1 answer
  • What is the volume of a box that will hold exactly 567 of these cubes with 1/3 inch sides?
    15·1 answer
  • Here is a list of numbers.
    5·1 answer
  • 2 points 5. What property is used to get from Step 1 to Step 2? * Step 1 : 28x + 10 = 66 Step 2: 28x = 56
    10·1 answer
  • 3 (a) A random sample of 200 voters in a town is selected, and 114 are found to support an annexation suit. Find the 96% confide
    12·1 answer
  • 9) y=x+ 11; (4, 13)​
    8·2 answers
  • Describe the graphs of x + 3y = 6 and 2x + 6y = 12<br>​
    6·2 answers
  • One angle is 2 more than three times its complement. What is the measure of the smaller angle.
    7·1 answer
  • Lance rolls a die 5 times. What is the probability that he rolls an even number all five times?
    11·2 answers
  • What is greater-3/5 or -0.35
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!