First we must find how much days are in a year. To do this, we must multiply the months by the days:
9*15 = 135
Next we divide the 700 days by the 135 days per year to find the total amount of years that has passed.
700/135 = 5.185...
Now we know that 5.185 years have passed, but the amount of full years has been 5 full years have passed after 700 days in this planet.
There isnt a number its represented by a variable. So the answer would be n/4-10=2
Answer:
11) is a
12) all answers are incorrect just put b
Step-by-step explanation:
Answer:
300
Step-by-step explanation:
Let x represent the number of adults in the zoo at 12 pm. Then the number of children at that time is 855 -x.
The number of remaining children is 1/5 of the number at 12 pm, so is ...
(855 -x)/5
The number of remaining adults is 1/4 of the number at 12 pm, so is ...
x/4
There are 36 more remaining children, so we have ...
(855 -x)/5 -x/4 = 36
171 -9x/20 = 36 . . . . . collect terms
135 = 9x/20 . . . . . . . . add (9/20)x-36
(20/9)(135) = x = 300 . . . . . multiply by 20/9
There were 300 adults in the zoo at 12 pm.
