Answer:The number of books that he had before last week is 28
Step-by-step explanation:
Let x represent the number of books that he had before last week.
Demetrious returned five library books last week. This means that the number of books left is x - 5
He returned three books this week. This means that the amount of books left is x - 5 - 3 = x - 8
He then checked out 8 more books. This means that the amount of books left is x-8-8 = x - 16
He now has 12 library books. This means that
x - 16 = 12
x = 12 + 16 = 28
Answer:
Square root function only continues in one direction forever whereas the cube root function continues in two directions forever.
Step-by-step explanation:
Torch+ battery= 2.50
Torch=battery+1.50
So,
battery+1.50+battery=2.50 therefore,
2 battery = 2.50-1.50;
battery = 1/2=0.50
Since the total price is 2.50 and the battery costs 0.50 then the torch must cost 2.
2/2.50 = 1/1.25 is the fraction the torch costs out of the total costs.
Answer:
Step-by-step explanation:
25
Answer:
total no. of butterflies=11000
no.of butterflies=679
percentage of butterflies=?
Percentage of butterflies= (11000/679) percent..
= 16.20 percentage
therefore 16.20 percentage butterflies are in US