Question

please help me tomorrow exam help me.................

Answer 1

for question 8

ANSWER IS X=1

Answer 2

Answer:

1) let the number = X

thrice the number = 3x

15 less than 30

3x - 15 = 30 (Ans. )

verification =

3x - 15 = 30

3x = 30 + 15

3x = 45

X = 45 / 3

X = 15

15 is 15 less than 30

b) = weight of Ram = X

Weight of Shyam = 64 kg

which is 12kg less than ram

X - 12 = 64. ( Ans.)

2) a = 2

b = 3

C = 4

$x = 2 {a}^{2} - 2ab + 8c \\ x = 2( {2)}^{2} - 2(2 \times 3) + 8(4) \\ x = 2(4) - 2(6) + 32 \\ x = 8 - 12 + 32 \\ x = 40 - 12 \\ x = 28$