The square root of 10 is 3.162...
Which lies between 3 and 4
It depends on the total of how long the race took, but each girl ran 1/4 of the race so if you know the total time just divide the time by 4 and you will get the answer. If you don't just say each girl ran 1/4 of the time.
54 nickels and 27 dimes
1 dime = 10 cents = $0.1
1 nickel = 5 cents = $0.05
setting up 2 equations
let n = amount of nickels and d = amount of dimes, then
n + d = 81 → (1)
0.05n + 0.1d = 5.4 → (2)
multiply (2 ) by 10
0.5n + d = 54 → (3)
subtract (3) from (1) to eliminate d
0.5n = 27 ( divide both sides by 0.5 )
n =
= 54
substitute n = 54 in (1)
54 + d = 81 ( subtract 54 from both sides )
d = 27
Mary has 54 nickels and 27 dimes
Perimiter is the distance around the shape. it is also the sum of the measures of the sides
so if you have a rectangle with sides legnth 4,4,2,2, then the perimiter is 4+4+2+2=12
area is dependent on the type of shape
basically, it is counting how much stuff in the shape
with a parallellogram, the area is legnth times width
so if you had a rectangle with legnth=4 and width=2 then the area is 4 times 2=8
Answer:
v = 17.4 meters
Step-by-step explanation:
This is a triangle with height (red dotted line) given.
The area of a triangle is given by the formula:
![A=\frac{1}{2}bh](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7Dbh)
Where
A is the area
b is the base length
h is the height
Given height = 12, and
area = 104.4
THe base is labeled as "v", so we find v by replacing into formula:
![A=\frac{1}{2}bh\\104.4=\frac{1}{2}(v)(12)\\104.4=6v\\v=\frac{104.4}{6}\\v=17.4](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B2%7Dbh%5C%5C104.4%3D%5Cfrac%7B1%7D%7B2%7D%28v%29%2812%29%5C%5C104.4%3D6v%5C%5Cv%3D%5Cfrac%7B104.4%7D%7B6%7D%5C%5Cv%3D17.4)
The base, v, is 17.4 meters