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3 years ago

9

Someone please help me!!

1 answer:

eduard3 years ago

4 0

On what do you need help

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Solve for k 5/8(3k+1)-1/4(7k+2)=1

lesya [120]

Answer:

<h2>k = 7</h2>

Step-by-step explanation:

$\dfrac{5}{8}(3k+1)-\dfrac{1}{4}(7k+2)=1\qquad\text{multiply both sides by 8}\\\\8\!\!\!\!\diagup^1\cdot\dfrac{5}{8\!\!\!\!\diagup_1}(3k+1)-8\!\!\!\!\diagup^2\cdot\dfrac{1}{4\!\!\!\!\diagup_1}(7k+2)=8\cdot1\\\\5(3k+1)-2(7k+2)=8\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\(5)(3k)+(5)(1)+(-2)(7k)+(-2)(2)=8\\\\15k+5-14k-4=8\qquad\text{combine like terms}\\\\(15k-14k)+(5-4)=8\\\\k+1=8\qquad\text{subtract 1 from both sides}\\\\k=7$

3 0

3 years ago

Simplify the expression by combining like<br> terms: Algebra 1

cricket20 [7]

Answer:

The number in the green box should be 3.

Step-by-step explanation:

$c + 4 {c}^{2} - 2 + 2c - {c}^{2} + 5 = 3 {c}^{2} + 3c + 3$

4 0

2 years ago

Final time i ask for help

Ber [7]

3x+11=65
3x=54
x=18

180-(35+65)=y
180-100=y
80=y

5 0

1 year ago

Find the value of x for which line a is parallel to line b .

erma4kov [3.2K]

Answer:

x = 20

Step-by-step explanation:

For a and b to be parallel, they must both add up to 180. Therefore, we can set up an equation:

3x+6x = 180

9x = 180

x = 20

6 0

2 years ago

Read 2 more answers

HALP MOI PLZZZZZZZ. IT'S EASY SO PLEASE. Ace borrowed $2000 from a friend and agreed to pay 12% annual interest for a period 3 y

Fiesta28 [93]

Answer:

Concept: Interest Rate

2000×0.12=240
$240 × 3 = 720
Principal= 2000
Interest paid= 720

7 0

2 years ago