25 - 0.15(40)
25-6
19
The remaining balance is $19.
Hope this helps!
So our original equations would be..
(a) perimeter in terms of y
(b) area in terms of y
*I'm actually not sure about b.. sorry*
(c) if perimeter = 28, find length
Hey there!!
Let us take the price of cinnamon tea as ' x ' and spice tea as ' y '
Now, let us take it into equation
12x + 3y = 15 -------------- ( 1 )
14x + 12y = 45 --------------- ( 2 )
Let us multiply the first equation with 4
48x + 12y = 60 --------------- ( 1 )
14x + 12y = 45 --------------- ( 2 )
Now, subtract equation 2
48x + 12y = 60
-14x - 12y = -45
Now, we get,
34x = 15
x = 15 / 34
This is the cost for cinnamon tea = $ 15 / 34
Now, substitute this into one equation
Let us take this equation - 12x + 3y = 15
Now, substitute ' x '
12 ( 15 / 34 ) + 3y = 15
6 ( 15 / 17 ) + 3y = 15
90 / 17 + 3y = 15
3y = 15 - 90/17
3y = 165 / 17
y = ( 165/17 ) ( 1 / 3 )
y = $ 55/17
Cinnamon tea = $ 15/34
Spice tea = $ 55/17
Hope helps!
Step-by-step explanation:
90+60+7x+12=180(sim of angles in a triangle)
7x+162=180
7x=180-162
7x=18
x=18/7
x=2.6
5x+12=37
X=5
Hope u do well on the test
