Respuesta :
Answer:
w=30.5-(w+4.1)
Step-by-step explanation:
2w+2(w+4.1)=61
2w=61-2(w+4.1)
w=30.5-(w+4.1)
Answer:
Width of the rectangle =13.2 cm
Step-by-step explanation:
Let l=length of the house and w=width of the house
From the question; l=4.1 + w
Perimeter is given to be 61
Perimeter = l + l + w + w -------------------(1)
but l=4.1 + w and perimeter =61
substituting the above into equation (1) Thus;
61 = 4.1 + w + 4.1 +w +w +w
we will rearrange this equation
61=4.1 + 4.1 +w + w+ w +w
61 = 8.2 + 4w
subtract 8.2 from both-side of the equation
61 - 8.2 = 8.2 - 8.2 + 4w
52.8 = 4w
Divide both-side of the equation by 4 to get the value of w
52.8/4 = 4w/4
13.2 = w
w=13.2
Therefore the width of the rectangle is 13.2 cm
The length of the rectangle is l = 4.1 +w
=4.1 +13.2
=17.3 cm