Question

8. In a model of a ship, the mast is 9 cm high, while the mast of the actual ship is 15 m high. If
the length of the ship is 35 metres, how long is the model ship?​

Answer 1

Answer:

Question 1:

Observe the tables given below and in each one find whether x and y are proportional:

(i)

x 3 5 8 11 26

y 9 15 24 33 78

(ii)

x 2.5 4 7.5 10 14

y 10 16 30 40 42

(iii)

x 5 7 9 15 18 25

y 15 21 27 60 72 75

ANSWER:

(i)

Clearly, xy=39=515=824=1133=2678=13(constant)Therefore, x and y are proportional.

(ii)

Clearly, xy=2.510=416=7.530=1040=14, while 1442=13i.e., 2.510=416=7.530=1040is not equal to 1442.Therefore, x and y are not proportional.

(iii)

Clearly, xy=515=721=927=2575=13, while 1560=1872=14i.e., 515=721=927=2575is not equal to 1560 and1872.Therefore, x and y are not proportional.

Step-by-step explanation:

Answer 2

Answer:

30 cm

Step-by-step explanation:

because if in model 9 cm high and in reality 15 m difference is the 6 and thats the reason