Question

19. Fill in the blanks:
(5)
a) The diagonals of a rectangle are bisectors of each other.
b)
If x = 2 and y = 1, then x3 - y3 =
55 x 5.5 =
d) A truck covers a distance of 510 km in 34 litres of diesel. The distance covered in 20 litres
of diesel is
km.
e) A number is divisible by 15 if it is divisible by
and





No jokes help me guys
i want step by step explanation
i will mark brainliest ​

Answer 1

Step-by-step explanation:

a) Bisectors

b) 7

As,

Given x = 2 and y = 1

${x}^{3} - {y}^{3}$

$= {2}^{3} - {1}^{3}$

= 8 - 1

= 7 (Ans)

c) 302.5

55 × 5.5 = 302.5 (Ans)

d) 300 km

As,

Distance covered in 34 litres = 510 km

So,

Distance covered in 1 litre

$= \frac{510}{34} km$

Therefore,

Distance covered in 20 litres

$= \frac{510}{34} \times 20 \: km$

$= 15 \times 20km$

= 300 km (Ans)

e) 3 and 5

As,

30 is divisible by 15 because is divisible by 3 and 5

Answer 2

Answer:

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