7 indian and 4 chinese finish a job in 5 days. 7 japanese and 3 chinese finish the same job in 7 days. given that the efficiency
1 answer:
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Answer:
B
Step-by-step explanation:
The height of 3 cut the base in half and perpendicular to the base, so
That is B
Answer:
C
Step-by-step explanation:
Check all points:
A: x=0, y=10, then from the equality follows that A lies on the line.
B: x=3, y=13, then from the equality follows that B lies on the line.
C: x=8, y=2, then from the inequality follows that C doesn't lie on the line.
D: x=5, y=15, then from the equality follows that D lies on the line.