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Define their age
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Let Jim be x years old
Jim = x
Father = x + 31 ← Jim is 31 years younger than the father
Grandfather = x + 70 ← Grandfather is 70 years older than Jim
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Combined age is 137, find x
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x + (x + 31) + (x + 70) = 137
x + x + 31 + x + 70 = 137
3x + 101 = 137
3x = 137 - 101
3x = 36
x = 12
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Find their age
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Jim = x = 12
Father = x + 31
Father = 12 + 31
Father = 43
Grandfather = x + 70
Grandfather = 12 + 70
Grandfather = 82
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Answer: Jim = 12 ; Father = 43 ; Grandfather = 82
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The left sides of the equations are the same and the right sides of the equations are different, therefore the system of equations is inconsistent.
Answer: B. inconsistent.
Answer:
look up demos, it works like a charm everytime!
Step-by-step explanation:
hope this helps :)
Answer:
No
Step-by-step explanation:
If 15 x 2=30 and 8x2=16 not 18 it’s incorrect