Solve the system using elimination:
1 answer:
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Ratio of perimeters is a : b:
21:18
Which reduces to: 7:6
Ratio of areas is a^2 : b^
2:
"7 ^2: 6^2"
Which simplifies to: 49:16
The answer is 7:6 and 49:36
21:18
Which reduces to: 7:6
Ratio of areas is a^2 : b^
"7 ^2: 6^2"
Which simplifies to: 49:16
The answer is 7:6 and 49:36
Answer: Option C.
Step-by-step explanation:
A) The result of the substitution shown in Option A is obtained by solving for y from the first equation and substituting into the second equation:
Therefore, this is a result of a substitution in the given system.
B) The result of the substitution shown in Option B is obtained by solving for y from the second equation and substituting into the first equation:
Therefore, this is a result of a substitution in the given system.
C) The result of the substitution shown in Option C is not a result of a substitution in the given system, because if you solve for x from the second equation and substitute into the first one, you get: