Question

ection (Each question carries 3 marks.)
The product of two numbers is 105. One of the numbers is -21. What is the other number?
The temperature in Leh at 6 am on Christmas was -5°C. By noon the temperature had risen by
11°C. Calculate the temperature in Leh at noon on Christmas.
An integer when divided by -16 gives 368. Find the integer.
If a = 2, b = -3, and c = -4, prove that a x (b + c)=(a x b) + (a X c).​

Answer 1

Answer:

(1)- The second no. is -5

(2)- 6 centigrate

(3)- (-5,888) is the no. which gives 368 when divided by

(-16).

Step-by-step explanation:

(1)-

let the unknown no. be x

According to question-

105/(-21) = (-5)

(2)-

The temperature at noon is

(-5) + 11 = 6 centigrate

(3)-

let the integer be x

According to question

x/(-16) = 368

x = 368x(-16)

x = (-5,888)

(4)-

a x (b + c)=2 x [(-3) + (-4)]

=2 x (-7)

=(-14)

(a x b) + (a x c)=[2 x (-3)] + [2 x (-4)]

=(-6) + (-8)

=(-14)

Hence proved that :-

a x (b + c)=(a x b) + (a x c)