Answer:
9
Step-by-step explanation:
There are 43 animal books 29 art books meaning there is a total of 72 books.
+1
4 3
2 9
_______
7 2
9 + 3=12 so add a 1 to 4 + 2 which= 6 + 1=7
And our answer is 72 .
If there are 8 shelves and each have same number of books then what is 72 divided by 8.
It= 9. to find out the answer even though we know we will use it's factors just to make sure our answer is correct.
9 x 1=9
9 x 2=18
9 x 3=27
And remember the 9 represents the books and the number 9 is is timesing by is the shelf number.
9 x 4=36
9 x 5=45
9 x 6=54
9 x 7=63
And our last shelf 9 x 8=72
So there we go each shelf has 9 books on it.
Hope this helps have a great day:)
10 to the exponent 2 is equal to 100, so 8.7 x 100 is equal to 870
A rancher wants to enclose a rectangular field with 220 ft of fencing.
One side is a river and will not require a fence.
What is the maximum area that can be enclosed?
:
The field requires only 3 sides of fence, therefore
L + 2W = 220
L = (220-2W); we can use this for substitution in the Area equation
:
Area
A = L*W
replace L with (220-2W)
A = W(220-2W)
A = -2W^2 + 220W
A quadratic equation, max A occurs at the axis of symmetry, x = -b/(2a)
In this equation
W = %28-220%29%2F%282%2A-2%29
W = 55 ft is the width for max area
:
Find the max area
A = -2(55^2) + 220(55)
A = -2(3025) + 12100
A = 6050 sq/ft is the max area
:
:
Confirm this with the dimensions calculated; 110 * 55 = 6050
Answer:
50+50
75+25
60+40
90+10
45+55
Step-by-step explanation:
It would take 1hr because if you subtract the hrs
