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torisob [31]
3 years ago
7

If the average of x, y, and 80 is 6 more than the

Mathematics
2 answers:
Verizon [17]3 years ago
8 0

Answer: welcome

Step-by-step explanation:

x

−

z

=

18

Explanation:

We can write the following averages:

x

+

y

+

80

3

and

y

+

z

+

80

3

The first (red) one is greater than the second (blue) one by 6.

Therefore the difference is 6.

x

+

y

+

80

3

−

y

+

z

+

80

3

=

6

               

×

3

3

×

(

x

+

y

+

80

)

3

−

3

×

(

y

+

z

+

80

)

3

=

6

×

3

x

+

y

+

80

−

(

y

+

z

+

80

)

=

18

x

+

y

+

80

−

y

−

z

−

80

=

18

x

+

y

+

80

−

y

−

z

−

80

=

18

×

×

×

×

×

×

×

x

x

−

z

=

18

WITCHER [35]3 years ago
3 0
Shorter answer is 18 :) enjoy!!!
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Check the picture below.

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