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Licemer1 [7]
3 years ago
9

Solve 7k+2m=kr+4m+3 for k

Mathematics
1 answer:
eimsori [14]3 years ago
7 0
7k + 2m = kr + 4m + 3
7k - kr = 4m - 2m + 3
7k - kr = 2m + 3
k(7 - r) = 2m + 3
k = (2m + 3) / (7 - r)
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The sum of X and fifteen
zhuklara [117]

x+15

depends on the value of x

7 0
3 years ago
Read 2 more answers
Simplify : 48÷6 [-52 ÷2 {4 - 3 (2 - 15÷3)}]​
garri49 [273]

Answer:

86

Step-by-step explanation:

48÷6 [-52 ÷2 {4 - 3 (2 - 15÷3)}] \\ 8[-52 ÷2 {4 - 3 (2 - 15÷3)}] \\ 8[-52 ÷2{1 (2 - 15÷3)}] \\ 8[ - 2.5{ (2 - 15÷3)}] \\ 8[ - 2.5{ ( - 13÷3)}] \\ 8[ - 2.5{ (  - 4.3)}] \\ 8[10.75 { }] \\  = 86

8 0
2 years ago
The problem is in the picture.
Semmy [17]

Answer:

  • an = 5 + 10(n -1)
  • a7 = 65

Step-by-step explanation:

The explicit formula for the n-th term of an arithmetic sequence is ...

  an = a1 + d(n -1)

where a1 is the first term and d is the common difference.

The sequence of seat counts has a1=5 and d=10, so the explicit formula is ...

  an = 5 +10(n -1)

___

The 7th term is ...

  a7 = 5 +10(7 -1) = 65

5 0
3 years ago
The volume of a sphere can be found using the formula V = πr . If the sphere has a diameter of 10x y z mm, what is the volume of
viva [34]

Answer:

<em>500πx³y³z³ </em>

Step-by-step explanation:

Volume of a sphere = 4πr³

r is the radius of the sphere

Given

Diameter of the sphere = 10xyz mm

Radius = diameter/2

Radius = 10xyz/2

Radius = 5xyz

Substitute the radius into the formula

Volume of the sphere = 4π(5xyz)³

Volume of the sphere = = 4π(125)x³y³z³

Volume of the sphere = 500πx³y³z³

<em>Hence the volume of the sphere is 500πx³y³z³ mm³</em>

8 0
2 years ago
How many books are on each shelve if there are 64 books on 4 shelves?
castortr0y [4]

Answer:

In each shelves there are 64/4 books I.e. 16.

5 0
3 years ago
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