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castortr0y [4]
3 years ago
14

Hi please i need the complete step-by-step solution for number 5. thank you ♥️​

Mathematics
1 answer:
stepladder [879]3 years ago
4 0

Answer:

m = 8.

Step-by-step explanation:

Arithmetic mean 18 = (12 + 3m)/2

Cross multiply:

12 + 3m = 36

3m = 36 - 12 = 24

m = 24/3 = 8.

Check this answer:

(3(8) + 12)/2

= (24 + 12)/2

= 36/2

= 18.

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(Imaginary numbers) Solve quadratic equation by completing the square : 4x^2+84=0. Show all steps
Zanzabum

Answer:

Cavab artıq 4 ilə 5 arasındadır, yəni 0-da 9-unuz olduğu üçün olduğu yerə qayıdın və cavab var

Step-by-step explanation:

Cavab artıq 4 ilə 5 arasındadır, yəni 0-da 9-unuz olduğu üçün olduğu yerə qayıdın və cavab var

3 0
3 years ago
Write an equation of the line containing the given point and perpendicular to the given line. Express your answer in y=my+b.
valentina_108 [34]
9x + y = 7
y = 9x + 7
6 = 9(5) + 7
6 = 45 + 7
<u>6</u> = <u>52</u>
52  52
0.1153846 = 1
4 0
4 years ago
marion wants to make 7/8 cup of salad for each person at her party. how many salad does she need to make for herself and four fr
BabaBlast [244]
To answer that think of this as how many groups of 7/8 cups of salad are needed.

If Marion is with four friends, she need salad for five total people.

She will need five groups of 7/8 cups of salad.

This is represented as 5 x 7/8.

5 x 7/8 = 4 3/8 cups of salad
6 0
3 years ago
5(2x-5) = 1/2(18x+40)​
andrew11 [14]

Answer:

x = 45

Step-by-step explanation:

5 (2x - 5) = 1/2 (18x + 40)​

10x - 25 = 9x + 20

10x = 9x + 45

x = 45

3 0
3 years ago
Read 2 more answers
What's equipment to 60/1
alekssr [168]

Sirrrr do u mean equivalent???

8 0
4 years ago
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