30 seconds, half a minute.
X/4 + x/5 = 1
5x/20 + 4x/20=1
9x/20 =1
9x = 20
x = 2.22 hours
Answer:
8n=55
Step-by-step explanation:
The product(multiplication) of 8 AND a number(meaning the multiplication of 8 and a number which is said to be n) is(equal to) 55.
I hope I explained it well enough. lol