Welcome to Westonci.ca, the ultimate question and answer platform. Get expert answers to your questions quickly and accurately. Get quick and reliable answers to your questions from a dedicated community of professionals on our platform. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

a=1/3h (a+4b+c) a=20 h =5 a=1 c=1

Sagot :

[tex]A=1/3h (a+4b+c) \\20=1/3(5)(1+4b+1) \\20=1/3(5+20b+5) \\60=10+20b \\50=20b \\b=50/20 \\b=2.5[/tex]