3 years ago

9 = 4(3k - 4) - 7k solve the equation

Mathematics

2 answers:

n200080 [17]3 years ago

7 0

9=12k-16-7k
25=9K
k=5
1) Break the brackets.
2) Combine like terms.
3)isolate variable.
4)solve for the variable

klasskru [66]3 years ago

6 0

$9=4(3k-4)-7k\\
9=12k-16-7k\\
9+16=12k-7k\\
25=5k\\
k=5$

You might be interested in

Cathy used a probability simulator to pull 3 colored marbles from a bag and flip a coin 50 times. The results are shown in the t

aliya0001 [1]

Answer:

blue marble 12/50. tails 20/50

Step-by-step explanation:

12/50×20/50 =240/2500= 12/125 =9.6%

5 0

2 years ago

A keypad has only the letters A−D. What is the total number of possible outcomes if the code has 3 letters?

____ [38]

Answer:

Step-by-step explanation:

Because 3 letter to find that just do 3 times 3 which = 9

Hope This Helped

4 0

2 years ago

Read 2 more answers

Guys, I need the answer, please

Nuetrik [128]

Answer:

6.28

Step-by-step explanation:

Find the diameter by multiplying the radius by 2, then multiply the diameter by Pi, which in your case is 3.14

R times 2= diameter

D time Pi= area

Area = 6.28

Please mark Brainliest

3 0

1 year ago

16. Your scores on four algebra tests are 93, 69, 89, and 97: After the

sdas [7]

Answer:

81 and above

Step-by-step explanation:

They have to be 81 and above

93+69+89+97=348

348/4=87 (average)

87=81=168

168/2= 84 (average)

4 0

2 years ago

Read 2 more answers

Write a quadratic equation in the form ax^2+bx+c=0 with roots of -4 and 5

Stolb23 [73]

Step-by-step explanation:

- 4 & 5 are roots

Therefore, (x + 4) & (x - 5) are factors.

Required quadratic equation is given as:

$(x + 4) (x - 5) \\ = x(x - 5) + 4(x - 5) \\ = {x }^{2} - 5x + 4x - 20 \\ = {x}^{2} - x - 20 \\$

7 0

3 years ago