Question

Write the Equations for the following statements :

(a) The sum of three consecutive integers is 18 .

(b) Akshita scored twice as many as Krishna . The sum of their scores is 25 more than a double century .

(c) the perimeter of a triangle is 14 cm . the second side is 5 cm less than the first side and the third side is 3 cm more than the second side .
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Answer 1

Answer:

take three consecutive number X + X + 1 + X + 2 is equal to 18

3 X + 3 is equal to 18

3x is equal to 18 minus 3

3 x is equal to 15

x is equal to 15 upon 3 is equal to 5

x=5

x+1=5+1=6

x+2=5+2=7

hence 3 consecutive numbers are 5-6-7

Answer 2

Answer:

(a) 4+6+8

(b) 2x+x=225

(c) 14cm= x+(x-5)+(x-5+3)