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3 years ago

Solve 7x - c=k for x

Mathematics

1 answer:

kobusy [5.1K]3 years ago

8 0

Answer:

$x = \frac{c+k}{7}$

Step-by-step explanation:

We'd add c in both sides

7x = c + k

Divide 7 in both sides isolate the variable

7x/7 = x

c+k/7

x = c + k/7

Our answer is x = c+k/7

You might be interested in

What is the length of the missing leg 15 and 9 meters

Brilliant_brown [7]

Answer: 12

Step-by-step explanation: I assume you are talking about a triangle in which the Hypotenuse is 15 and leg A is 9

in this case we have to use a reverse pythagorean theorem

the original one is a^ + b^ = c^ then reverse it to get c^ - a ^ = b^

we know that C is 15 and A is 9 so substitute

15^ - 9^ = b^

15 ^ = 225 and 9^ = 81 so substitute again

225 - 81 = b^ then subtract

144 = b^ you know that the square root of 144 is 12 because 12 x 12 = 144

so 12 is the last side

hope this helps mark me brainliest if it did

4 0

3 years ago

What is the slope OF THE GRAPH, not what is A slope, what is THE slope

Oksanka [162]

Answer:

-3/1

Step-by-step explanation:

The slope can be found by putting the rise over the run.

Pick 2 points on the graph that intercept the line.

I'll pick (0,2), and (1,-1)

Look at the rise.(How many places it goes up or down)

The rise vertical distance(rise), between the two points is -3.

Now look at the run(the horizontal distance.) It's 1.

Rise/Run = -3/1 AKA -3

3 0

3 years ago

Read 2 more answers

A certain restaurant offers 8 different salads, 5 different main courses, 6 different desserts. If customers choose one salad, o

Naddika [18.5K]

Answer: E. 1200

Step-by-step explanation:

Given : A certain restaurant offers 8 different salads, 5 different main courses, 6 different desserts.

i.e. No. of choices for different salads= 8 -----(1)

No. of choices for different main courses = 5 ----(2)

No. of choices for different desserts = 6

When we choose two different desserts then we use permutation(repeatition not allowed) :

$^6P_2=\dfrac{6!}{(6-2)!}=\dfrac{6\times5\times4!}{4!}=6\times5=30$ ----(3)

[∵ No. of ways to choose r things out of n = $^nP_r=\dfrac{n!}{(n-r)!}$ ]

If customers choose one salad, one main course and two different desserts for their meal , then By Fundamental principle of counting (Multiply (1) , (2) and (3)), the number of different meals are possible :-

$8\times5\times30\\\\=1200$

Hence, the correct answer is E. 1200 .

8 0

3 years ago

5. The rate of change in revenue for the Priceline Group from 2004 to 2013 can be modeled

Mumz [18]

Answer:

a ) R(x) = 0,2933*e∧0,2387*t

b) 5,9042 billions of dollars

Step-by-step explanation:

The rate of change in revenue dR/dt for Priceline Group is

dR/dt = 0,07*e∧0,2387*t

dR = (0,07*e∧0,2387*t ) * dt

∫dR = ∫ (0,07*e∧0,2387*t ) * dt between 2004 to 2013 ( t = 4 stands for 2004 and t = 13 stands for 2013 )

R(x) = (0,07/ 0,2387)*e∧0,2387*t )

R(x) = 0,2933*e∧0,2387*t

Then

R(4) = 0,2933*e∧0,2387*4

R(4) = 0,2933*2,5981

R(4) = 0,7602 billions of dollars

R(12) = R(4) + 0,2933*e∧0,2387*12

R(12) = 0,7602 + 5,1440

R(12) = 5,9042 billions of dollars

8 0

3 years ago

1. what is 20 percent of 12.37

Igoryamba

Answer:

1. 2.474

2. 2.694

3. 2.334

4. 2.638

Step-by-step explanation:

1 = .20 x 12.37 = 2.474

2 = .20 x 13.47 = 2.694

3 = .20 x 11.67 = 2.334

4 = .20 x 13.19 = 2.638

6 0

3 years ago