The sum of 4 consecutive integers is 18

3 , 4 , 5 and 6

Step-by-step explanation:

Let the consecutive integers be ; x , x+1 , x + 2 and x + 3 , then their sum implies :

x + (x + 1 )  + (x + 2 ) + ( x + 3 ) = 18

x + x + 1 + x + 2 + x + 3 = 18

4x + 6 = 18

4x = 18 - 6

4x = 12

x = 3

Therefore , the numbers are

3 , 3 + 1 , 3 + 2 and 3 + 3

which are :

3 , 4 , 5 , 6

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm