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Vaselesa [24]
2 years ago
7

8 times a certain number is added to 5 times a second number to give 184.

Mathematics
1 answer:
Genrish500 [490]2 years ago
7 0

Answer:

8x+5y=184

Hope This Helps!!!

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Una maquina que fabrica tornillos produce un 3% de piezas defectuosas. Si hoy se han apartado 51 tornillos defectuosos cuantos t
grin007 [14]

Answer:

1700 tornillos

Step-by-step explanation:

Dado que la máquina produce un 3% de tornillos defectuosos en un día. Produjo 51 tornillos defectuosos en un día.

Deje que el número total de tornillos producidos ese día sea x

Por lo tanto;

3% de x = 51

3/100 * x = 51

x = 51 * 100/3

x = 1700 tornillos

7 0
3 years ago
When placed end to end, three red rods are 2 cm longer than than 2 blue rods. Three blue rods are 2 cm longer than four red rods
Oxana [17]

Answer:

Red = 10 cm, blue = 14 cm

Step-by-step explanation:

<em>Let the length of each red rod be </em><em>r </em><em>and each blue rod be </em><em>b</em>

<u>Then we have:</u>

  • 3r - 2b = 2
  • 3b - 4r = 2

<u>Multiply the first equation by 3 and the second one by 2:</u>

  • 9r - 6b = 6
  • 6b - 8r = 4

<u>Add the equations to eliminate one of variables:</u>

  • 9r - 8r = 6 + 4
  • r = 10 cm

<u>Find the value of b:</u>

  • 3*10 -2b = 2
  • 30 - 2 = 2b
  • 2b = 28
  • b = 14 cm

5 0
3 years ago
What is the mean absolute deviation of the data set? 12, 15, 7, 4, 9, 10, 9, 6
bearhunter [10]
Here is an example:
Find the MAD of 2,4,6,8 Step 1 : Find the mean of the data : (2+4+6+8) / 4 = 20/5 = 4 Step 2 : Find the distance between each data and mean. Distance between 2 and 5 is 3 Distance between 4 and 5 is 1 Distance between 6 and 5 is 1 Distance between 8 and 5 is 3
Step 3 : Add all the distances : 3+1+1+3 = 8
Step 4 : Divide it by the number of data : 8 / 4 = 2 2 is the average absolute deviation.
3 0
3 years ago
Saturday, nola bowled 3 games in her bowling league. she had a mean score of 115. the score of her first game was 110. the score
Elina [12.6K]
110+90+145=345
345 divided by 3=115

so the score of her third game was 145 points.
hope i helped! :)
please rate brainliest!
7 0
3 years ago
Read 2 more answers
What is negative 1 and one fourths times nine?
MAXImum [283]

Answer:

-11.25

Step-by-step explanation:

5 0
3 years ago
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