Your percentage of change would have to be about 21.05, but the full answer is 21.05263. Since we are going to need to round to the nearest percent, you would have 22% decrease. The difference in the change is -20.
The original class had 32 students. 25% of 32 is 8 and 32+8=40
The answer is 18.
If you multiple 3 x 3 x 2 you get 18 different ways to arrange the books
Answer: length = 14 meters
Width = 10 meters
Step-by-step explanation:
The rectangular tennis court has two equal lengths,L and two equal widths,W
The area of the tennis court is expressed as
Area = Length × width
The area is given as 140 square meters. It means that
L× W = 140
It's length is 6 meters less than twice it's width. It means that
L = 2W - 6
Substituting L = 2W - 6 into LW = 140, it becomes
W(2W - 6) = 140
2W^2 - 6W = 140
2W^2 - 6W - 140 = 0
W^2 - 3W - 70 = 0
W^2 + 7W - 10W - 70 = 0
W( W + 7 ) - 10( W + 7) = 0
( W + 7 )(W - 10) = 0
( W + 7 ) = 0 or W - 10 = 0
W= -7 or W = 10 meters
The value cannot be negative so W = 10
L = 2W - 6 = 2×10 - 6
L = 20 - 6 = 14 meters
Answer:
rectangle A:
LENGTH:9
WİDTH:6
rectangle B:
LENGTH:9
WİDTH:3
Step-by-step explanation:
if you want to find the length of a square you should know that in a square all 4 sides lengths are the same so the are is give as 36 to find 1 side of the length we have to divide 36 with 4(because there are 4 sides)
which means the lengths of each side is 9.
it is the same as in rectangle a and b length hasn't changed only the width has changed.
we can also find the width with the information given us about its ratio.
it says that The ratio of area A to area B is 2:1
the length is 9:
we can make it simple like this lets say 2x and 1x has to give us 9
so we can say 3x=9,x=3
to find the width we can say that 2x width is for rectangle A and 1 x is rectangle B. so x was 3:
2x=6
1x=3
these are the widths of rectangle A and B
