109233idn
Answered

Discover new knowledge and insights with IDNLearn.com's extensive Q&A database. Ask any question and receive comprehensive, well-informed responses from our dedicated team of experts.

the length of a rectangle is 7 cm more than its width and the area is 30 cm find the length, width and the perimeter

Sagot :

Answer:

Step-by-step explanation:

let width=x

length=x+7

x(x+7)=30

x²+7x-30=0

x²+10x-3x-30=0

x(x+10)-3(x+10)=0

(x+10)(x-3)=0

either x=-10 (rejected being negative)

or x=3

width=3 cm

length=3+7=10 cm

Perimeter=2(10+3)=2×13=26 cm

We value your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. For clear and precise answers, choose IDNLearn.com. Thanks for stopping by, and come back soon for more valuable insights.