bertha4082
30.07.2019 •
Mathematics
Find a rational number that is between 7.7 and 7.9. explain why it is rational.
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Ответ:
One rational number can be 7.8
It is rational because it has terminating decimal expamsion
Ответ:
Answer
y = 2x +8
Step-by-step explanation:
Add 2 x to both sides of the first equation to get:
y = 8 + 2 x
Divide both sides of the second equation by 2 to get:
y = 8 + 2 x
The two equations determine the same conditions on xy so this system of equations has an infinite number of solutions, namely all points on the line:
y = 2 x + 8