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Alla [95]
3 years ago
13

Find the third number if their average is 6 and two of them are 6 and 7​

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
8 0

Answer:

5

Step-by-step explanation:

If their average is 6 and there are three numbers in total, the total sum of the three numbers would be:

6×3 = 18

You know that two of them is 6 and 7, so you can find the last number easily.

18-6-7 = 5  

8_murik_8 [283]3 years ago
4 0

Answer:

5

Step-by-step explanation:

6 +7+5 = 18 and 18/3 = 6

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10-5x=3(x-4)-2(x+7)-------
VashaNatasha [74]

Answer:

x=6

Step-by-step explanation:

10-5x=3(x-4)-2(x+7)

Distribute

10-5x=3x-12-2x14

Combine like terms

10-5x = x-26

add 5x to each side

10-5x+5x = x+5x-26

10 = 6x-26

Add 26 to each side

10+26 = 6x-26+26

36 = 6x

Divide by 6

36/6 = 6x/6

6 =x

5 0
3 years ago
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Kevin picked up 10 ounces of strawberries he wants to freeze them in 8 ounces bag how many packages of strawberries will Kevin m
schepotkina [342]

Answer:

1 1/4

Step-by-step explanation:

3 0
3 years ago
!! PLEASE HELP QUICKLY 20 POINTS !!<br><br><br>Evaluate 4 - 0.25g + 0.5h when g=10 and h=5
Sonja [21]

Step-by-step explanation:

4- 0.25 + 0.5h

0.25g= 2.5

4- 2.5 = 1.5

0.5h = 2.5

4- 2.5 + 2.5

addition is first

2.5+2.5 = 5

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4 0
3 years ago
X squared + 7 x equals -10
LenKa [72]
Hi there

x² + 7x = -10
x² + 7x + 10 = 0
Now, we can factor left side
(x+2)(x+5) = 0
Set factors equal to 0
x + 2 = 0 or x + 5 = 0
x = 0 - 2 or x = 0 - 5
x = -2 or x =-5


I hope that's help !

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3 years ago
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