1.
25%
.3 + .2 + .15 + .1 = .75
1.00 - .75 = .25
2.
120 students
There are 400 total students
.3 * 400 = 120
4.
tennis-
.1 * 400 = 40 students prefer tennis
football-
.25 * 400 = 100 students prefer football
140 students like football/tennis
5.
400 students
There are four quarters in a whole
.25% = 100
100 * 4 = 400
Answer:
h=A-2πr2/2πr
Step-by-step explanation:
Answer:
Just find the outer perimeter and round it, and use your questions wisley because Brainly usally takes away your points.
Step-by-step explanation:
Answer:
46
Step-by-step explanation:
Let 
represent a number with 
in the ten's position and 
is the one's position.
This means actually has value of 
.
We are given the sum of those digits of is 10; this means 
.
It says if 18 is added to the number , then the result is 
.
So has value and
has value 
.
We are given then:
Subtract 
on both sides:
Simplify:
Subtract on both sides:
Divide both sides by 9:
Rearrange by commutative property:
So the system of equations we want to solve is:
-------------------------Add equations together (this will eliminate the variable and allow you to go ahead and solve for :
Divide both sides by 2:
Simplify:
If and , then 
. since 4+6=10.
So the original number is (46).
18 more than 46 is 18+46=(64) which is what we wanted.
We also have the sum of 4 and 6 is 10 as well.
Answer:
A) length = width +10
B) length * width = 144 OR
B) width = 144 /length putting B) into A)
A) length = 144 / length + 10 then solving for length
A) length^2 = 144 +10 length
A) length^2 -10 length - 144 = 0 then we factor
(length -18) * (length +8) = 0
length = 18 feet
width = 8 feet
Step-by-step explanation:
