Answer: 2< x < 10, closed circle at 2 and 10, line inbetween them
Step-by-step explanation:
Answer:
The answer simplify is 16384
Step-by-step explanation:
Answer:
The area of whole square is 396 sq mm
the area of triangle = 99
396 - 99 = 297 sq mm
Answer - 297
Let the present age of student be x
Present of teacher will be 4x
After 20 years,
Age of student = x + 20
Age of teacher = 4x + 20
According to the given condition after 20 years,
x + 20 = (4x + 20)/2
x + 20 = 2x + 10
2x - x = 20 - 10
x = 10
So student's present age is 10 years while teacher's is 4 x 10 i.e 40 years.
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210/20=10.5 per hour
So
2000/10.5=190 hours
