Answer:
the value of x equals to 20 thats is solution okay
Answer:
1.28
2. -3.5
3.-10.5
Step-by-step explanation:
1.-0.0035 · 12000+70= 28
2. -0.0035 ·21000+70=-3.5
3. -0.0035 ·23000+70=-10.5
I hope this helps
Let's call the store value as s and the wholesale price as w. A store prices tapes by raising the wholesale price 50%(0.5 in decimals) and adding 25 cents, writing this as an equation, we have
![s(w)=w+0.5w+0.25](https://tex.z-dn.net/?f=s%28w%29%3Dw%2B0.5w%2B0.25)
If we invert the equation we're going to find the the wholesale price as a function of the store price.
![\begin{gathered} s=w+0.5w+0.25 \\ s=1.5w+0.25 \\ s-0.25=1.5w \\ w(s)=\frac{s-0.25}{1.5} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20s%3Dw%2B0.5w%2B0.25%20%5C%5C%20s%3D1.5w%2B0.25%20%5C%5C%20s-0.25%3D1.5w%20%5C%5C%20w%28s%29%3D%5Cfrac%7Bs-0.25%7D%7B1.5%7D%20%5Cend%7Bgathered%7D)
Now, to find the wholesale price if the sales price is $1.99, we just need to evaluate s = 1.99 on the function we created.
![w(1.99)=\frac{1.99-0.25}{1.5}=1.16](https://tex.z-dn.net/?f=w%281.99%29%3D%5Cfrac%7B1.99-0.25%7D%7B1.5%7D%3D1.16)
The wholesale price is $1.16.
Answer:
See explanation
Step-by-step explanation:
![(x^2+9x+10)(x-2)= \\\\x^3-2x^2+9x^2-18x+10x-20= \\\\x^3+7x^2-8x-20](https://tex.z-dn.net/?f=%28x%5E2%2B9x%2B10%29%28x-2%29%3D%20%5C%5C%5C%5Cx%5E3-2x%5E2%2B9x%5E2-18x%2B10x-20%3D%20%5C%5C%5C%5Cx%5E3%2B7x%5E2-8x-20)
Jimmy is incorrect.
Using long division, you can find that the real answer.
First, subtract
from the original expression, leaving you with
.
Next, subtract
from the expression, leaving you with
. Finally, subtract
from the expression, leaving you with a remainder of 0. This means that the real quotient is
. Hope this helps!