Question

40%of440+x%of655=4761​

Answer 1

Answer:

when any ray coming parallel to mirror and back againg reflect back from focous point is called first rule of mirror

Step-by-step explanation:

there are 3 types of rule of mirror

Answer 2

Answer:

Step-by-step explanation:

Given that,

40% of 440 + x % of 655 = 4761

⇒ ( 40 / 100 × 440 )+ ( x / 100 × 655 ) =4761

⇒ ( 4 × 44 ) + ( 131x / 20 ) = 4761

⇒ 176 + ( 131x / 20 ) = 4761

⇒ ( 20 × 176 ) + 131x / 20 = 4761

⇒ ( 3520 + 131x ) / 20 = 4761

⇒ 3520 + 131x = 4761 × 20

⇒ 3520 + 131x = 95220

⇒ 131x = 95220 - 3520

⇒ 131x = 91700

⇒ x = 91700 / 131

⇒ x = 700 is the answer