Answer:
11.25
Step-by-step explanation:
you will divide the total time (45 mintues) by the 4 speakers bc the question said tht each speaker will have the same time (evenly divided time)
Answer:
-4, 3 1/2 JFURE8EGNRODG RE NEJEUSUEHEUE I did this for 20 characters
2*200*300=(200+x)(300+x)
120000=60000+200x+300x+x^2
x^2+500x-60000=0
(x+600)(x-100)=0
x=-600 or x=100
length is positive thus negative value is ignored. So answer is 100