Answer:
3.71
Step-by-step explanation:
Add the money.....
In fraction 100/100
In mixed number 10 0/10
Simplest form = 100
I hop this helps! :)
Answer:
10√3 / 3
Step-by-step explanation:
cos 30 = 5 / x
x = 5 / cos 30
= 5 / √3 / 2
= 10 √3
= 10√3 / 3
(x, y) = (
,
)
given the 2 equations
5x - 3y - 10 = 0 → (1)
x + y - 7 = 0 → (2)
rearrange (2) to obtain y in terms of x
y = 7 - x → (3)
Substitute y = 7 - x into (1)
5x - 3(7 - x) - 10 = 0
5x - 21 + 3x - 10 = 0
8x - 31 = 0 ( add 31 to both sides )
8x = 31 ( divide both sides by 8 )
x = 
Substitute this value into (3) for y
y = 7 - x =
-
= 
Cross multiply.
14/12=x/18
14 x 18 = 252
252/12= 21
so x=21