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
earnstyle [38]
3 years ago
10

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

Mathematics
1 answer:
professor190 [17]3 years ago
6 0

Answer:

\large\boxed{k=\dfrac{2m+3}{7-r}\ \text{for}\ r\neq7}

Step-by-step explanation:

7k+2m=kr+4m+3\qquad\text{subtract}\ 2m\ \text{from both sides}\\\\7k+2m-2m=kr+4m-2m+3\\\\7k=kr+2m+3\qquad\text{subtract}\ kr\ \text{from both sides}\\\\7k-kr=kr-kr+2m+3\\\\7k-kr=2m+3\qquad\text{distribute}\\\\k(7-r)=2m+3\qquad\text{divide both sides by}\ (7-r)\neq0\\\\k=\dfrac{2m+3}{7-r}

You might be interested in
judy got 117 problems right on a math test in her night school class. She got a score of 78% right. How many problems were on th
scZoUnD [109]
You would set this up as Part÷Whole=Percent÷100
Part=117
Whole= X
Percent=78
117÷X=78÷100
Set these up as fractions and cross multiply. You will get 117×100=78X
117×100=11,700
Divide both sides by 78 and you get x=150
There were 150 problems
6 0
3 years ago
Eight times the sum of 5 and a number is less than 56.
Gwar [14]
8• (5+x) < 56
That is the equation
4 0
3 years ago
Can you please help me with 3 and 4
Otrada [13]
Number 3 is 1:3 but I don't know what 4 is I can't see the whole problem
3 0
2 years ago
What is the distributive property of 15+45
Taya2010 [7]
The distributive property is 15+45 = (10 + 40) + (5+5) = 50 + 10 = 60 Hope this helps you.
5 0
3 years ago
11. The real number
victus00 [196]

Answer:

B whole number

Step-by-step explanation:

Whole number is the right answer because integers are even numbers, irrational numbers are in root. and rational numbers are in points.

5 0
3 years ago
Other questions:
  • What's the original price of 50% discount of a sale price of 299.99​
    15·2 answers
  • Mai is putting money into a checking account.Let Y represent the total amount of money in the account (dollars)Let X represent t
    10·1 answer
  • Find the sum of the first 90 terms of the sequence –4, –1, 2, 5, 8, ...
    5·2 answers
  • 13. Give an example of a linear equation that is<br> parallel to the y-axis.
    9·1 answer
  • 1) Solve the following equations : a)x/5 + 10 =15 b) 25x + 26 = 101
    6·1 answer
  • What would be the new median if 21 was added to the list
    13·1 answer
  • Write an equation for the exponential function represented in the graph below.
    10·1 answer
  • Evaluate. 2 (14–32 +1) 1:3.-​
    7·2 answers
  • Maria bought a stock for x dollars, and she sold it at a profit of 20 %. Write a
    9·1 answer
  • If Q = {all perfect squares less than 30} and p={ all odd numbers from 1 to 10}
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!