Let's solve your equation step-by-step
6v^2+v=40
step 1: subtract 40 from both sides
6v^2+v-40=0
6v^2+v-40=0
Step 2: factor left side of equation
(3v+8)(2v-5)=0
step 3: set factors eqyal to 0
3v+8=0 or 2v-5=0
Answer is v= -8/3 or v= 5/2
Let the two numbers be x and y.
x + y = 86
+
x - y = 12
_________
2x + 0 = 98
__________
2x = 98
x = 98/2
x = 49
From x + y = 86
49 + y = 86
y = 86 - 49
y = 37
The numbers are 49 and 37.
Answer:
y = $30x ;
1 : $30
Step-by-step explanation:
Given that :
$60 is saved in electricity bill for every 2 panels
Model, y
Amount saved, y = amount saved per panel * number of panels
Let number of panels = x
Hence, total amount saved, y ;
y = $30x
Ratio of panels to money saved :
Number of panels : amount of money saved
2 : $60
1 : $30
Hence, $30 is saved in cost of electricity bill per 1 solar panel purchased.
