MATHEMATICS HIGH SCHOOL

What is the anser5 to 5k-2k=12

Answers

Answer 1
Answer: 3k=12
k=12/3
the final answer is k=4
Answer 2
Answer:

Step-by-step explanation:

5k-2k=12

+2k +2k

7k=12

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If y* -4x+1 were changed to y =- 2x + 6, how would the graph of the new line

Answers

Answer:

4x+1 to 2x+6 the graph has been shifted or reflected on the y-axis

jamie has 8/10 of a candy bar leftover .He wants to split it into 1/3 pieces How many 1/3 pieces can he make

Answers

see if this helps u: brainly.com/question/2093945                                                                                                                                                                                                               I hope this helps.

(a) Solve 7( k - 3 ) = 3k - 5 (b) Expand and simplify (2x + 3 )( x - 8)

(c) Solve 7 - 3 f  = 2
                 4

Answers

a) 7(k-3)=3k-5\n 7k-21=3k-5\n 7k-3k=-5+21\n 4k=16\n k=\frac { 16 }{ 4 } \n k=4

b) (2x+3)(x-8)\n 2{ x }^( 2 )-16x+3x-24\n 2{ x }^( 2 )-13x-24

c) \frac { 7-3f }{ 4 } =2\n 7-3f=4\cdot 2\n 7-3f=8\n -3f=8-7\n -3f=1\n f=-\frac { 1 }{ 3 }
(a)\n7(k-3)=3k-5\n7(k)+7(-3)=3k-5\n7k-21=3k-5\ \ \ \ |add\ 21\ to\ both\ sides\n7k=3k+16\ \ \ \ |subtract\ 3k\ from\ both\ sides\n4k=16\ \ \ \ \ |divide\ both\ sides\ by\ 4\n\boxed{k=4}


(b)\n(2x+3)(x-8)=(2x)(x)+(2x)(-8)+(3)(x)+3(-8)\n\n=2x^2-16x+3x-24=\boxed{2x^2-13x-24}


(c)\n(7-3f)/(4)=2\ \ \ \ |multiply\ both\ sides\ by\ 4\n\n\not4^1\cdot(7-3f)/(\not4_1)=4\cdot2\n\n7-3f=8\ \ \ \ \ |subtract\ 7\ from\ both\ sides\n\n-3f=1\ \ \ \ \ |divide\ both\ sides\ by\ (-3)\n\n\boxed{f=-(1)/(3)}

PLEASE HELP!!!!!!!If JK = 6r, KL = 3r, and JL = 27, what is the value of r?

a. 1.5
b. 9
c. 3
d. 4

Answers

Well to solve for r, what you would need to do is make up an equation based on the expressions that represent the segments of the line in the image.

JK represents the first aspect of the line and is equal to 6r.

Likewise, KL represents the second component of the line and is equal to 3r.

We also know the total value from the first point to the last one, and that is 27.

Now simply add the first 2 expressions that represent the segments of the line and make it equal to the total length of the line, 27 and then solve for r.

6r + 3r = 27
9r = 27
r = 27/9
r = 3.

So now we know that JK is 6 • 3 = 18 and KL is 3 • 3 = 9, thus adding both together will give a value of 27, 18 + 9 = 27.

The solution is C.3

Answer:

Its 3

Step-by-step explanation:

1. Given: 3(m-2) + 14 = 38
Prove: m= 10
please help it’s a proof

Answers

Answer:

It is 10 (m=10)

Step-by-step explanation:

3 (10-2) + 14                  Subtract whats in the parentheses

3 (8) + 14                        Multiply 3 and 8

24 + 14                             Add the remaining to get the sum ( 24 + 14 )

38           (Your total)

~~~Hope this helps~~~
I think their right.

The length of a rectangular poster is 3 inches less than the width. The perimeter is 38 inches. Find the length

Answers

Answer: Breadth = 11 ; Length = 8

Step-by-step explanation:

Let the width of the rectangle be 'x'

Length of the rectangle = x - 3

Perimeter of the rectangle = 38

Perimeter of rectangle formula = 2 ( length + breadth )

Substitute:

2 ( x + x-3 ) = 38

2 ( 2x - 3 ) = 38

2x - 3 = 19

2x = 19 + 3

2x = 22

x = 11

Therefore, the breadth  = 11

Length = x-3 = 11 - 3 = 8

To check, find the perimeter:

2( 11 + 8)

= 2 ( 19 )

= 38.

We get the same perimeter so the answer is correct.

Answer:

length =8

Step-by-step explanation:

x= width

x-3(3 inches less than the width)

x+x-3+x+x-3=38

4x-6=33. add 6 on both sides

4x=44 divide by 4

x=11. plug 11 in for x because 11 is the width. in the equation x-3. (x=width) 11-3= 8. The length is 8.

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