These solutions can be called “roots”, “zeroes”, and “x-intercepts”.
LW = 45
L + 2W = 19
L = 19-2W
substituting for L :-
W(19-2W) = 45
-2W^2 + 19W = 45
2W^2 - 19W + 45 = 0
W = 5 or 4.5
If W = 5, L = 9
If W = 4.5, L = 10
So there are 2 possible answers.
Answer:
$427,500 dollars
Step-by-step explanation:
Given the following question:
Initial price = 450,000
5% discount
In order to find the answer, we simply find 5% of 450,000.
The radio (after a 5% discount) costs "$427,500 dollars."
Hope this helps.
Answer:
a =-6
Step-by-step explanation:
4a+5=2+3.5a
Subtract 3.5a from each side
4a-3.5a+5=2+3.5a-3.5a
.5a +5 = 2
Subtract 5 from each side
.5a +5-5 = 2-5
.5a = -3
Divide each side by .5
.5a/.5 = -3/.5
a =-6
