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A boat travels in a stream moving at a speed of 5km/hr. If the speed of the boat while going upstream is 15 km/hr. What will be th

By Natalia

A boat travels in a stream moving at a speed of 5km/hr. If the speed of the boat while going upstream is 15 km/hr. What will be the speed of the boat in still water?

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Natalia

Find the answers of the
following additions:
(a) (-11) + (- 12)
(b) (+10) + (+4)
(c) (-32) + (-25)
(d) (+

8. Simplify using suitable identity(x+5) (x-5) +25

9. Add: 5(2m-1) and 6m+3.

10. Find: 15xy(12y-3)(y+5)÷(4y-

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