To "break even" means that the costs are equal to the money made, so profit would have to be 0. Therefore, we can rewrite the equation to be
0 = x3 -4x2 +5x -20
From here, all you have to do is factor to be able to solve for the values of x
First, since the first two numbers both have an x2, we can factor that out
x2(x-4) + 5x -20 = 0
The next two can factor out a 5
x2(x-4) + 5(x-4) =0
Since both of these terms share an (x-4), they can be factored to become:
(x-4) (x2 +5) = 0
So now we just solve for x, and get x = 4, and +- (sqrt) 5i
Since 4 is the only answer present in the options (and since 5i is a non-real number), the answer would be 4
ANS: D
Hope this helped ^-^
Answer:
3 orders
Step-by-step explanation:
12 x .25=3
The formula of simple interest to find the amount
principal plus simple interest
p+si=a
the formula to find the simple interest
principle multiplied by rate of interest multiplied by time the whole divided by 100
p*r*t/100=si
let us replace the formula
43500*2.25*5/100=si
97875*5/100=si
489375/100=si
4893.75=si
4893.75+43500=a
48393.75=a
hope you found this useful
please put this as the brainliest answer please
The formula would look like this
---------------------------------------------------------------------------------------------------------
y = w(x) = √x
---------------------------------------------------------------------------------------------------------
The plot graph from the given value of <span>x </span>; the corresponding values of y are
------------------------------------------------------------------------------------------------------
x y
0 0
0.04 0.2
0.09 0.3
0.16 0.4
0.25 0.5
0.36 0.6
0.49 0.7
0.64 0.8
0.81 0.9
1.0 1.0
I hope this was helpful :)
<u>Answer</u>
Incorrect
<u>Explanation</u>
Unpack the problem:
Let the distance round the track to be X.
Speed is the ratio of distance to time.
Robert run a distance of (1/2)x
Elaine run a distance of (3/4)x
Make a plan:
Finding the speed of each.
Compare their speeds to determine who ran faster than who.
Solution:
Robert's speed =(1/2)x/(5/6)
=1/2×6/5x
= (3/5)x
= 0.6x
Elaine's speed = (3/4)x/(9/10)
= (3/4)×(10/9)x
= (5/6)x
= 0.83333x
<em>Elaine ran faster than Robert. </em>
<u>Look back and explain:</u>
0.83333x > 0.6x
Elaine's speed is higher than Robert's speed.
This shows that Elaine ran faster than Robert.
