The $347 selling price for a stereo is $35 more than 3 times the wholesale cost. Write

Mathematics

1 answer:

Harrizon [31]3 years ago

6 0

Hello!

$\large\boxed{\$104}$

We can write an expression to display this scenario:

$347 is $35 more than 3 times the wholesale cost (x), so:

3x + 35 = 347

Subtract 35 from both sides to isolate x:

3x + 35 - 35 = 347 - 35

3x = 312

Divide both sides by 3:

3x/3 = 312/3

x = $104

You might be interested in

20c + 8d +10c - 5d please answer you would get 15 points!

Rudik [331]

I think 30c+3d would be the correct answer.

4 0

3 years ago

Read 2 more answers

Explain why x and 4x - 10 are factors of the expression x(4x - 10)3 rather than terms of the expression. What are the terms of t

andriy [413]

Solution :- Let p(x) be the polynomial such that

$p(x) = x(4x-10)^3\\\text{and let f(x) be another polynomial such that }\\f(x)=4x-10\\\text{To find , Put } f(x)=0\\\Rightarrow4x-10=0\\\Rightarrow4x=10\\\Rightarrow x=5/2\\\text{Now substituting value of x in p(x),we get}\\p(x)=\frac{5}{2} .(4(5/2)-10)^3\\\Rightarrow\frac{5}{2}.(10-10)^3=0\\\text{Similarly let g(x)=x ,we get x=0 by putting g(x)=0}\\\text{now f(x)=0 for x=0}\\\text{So by Factor theorem f(x) and g(x) are the factors of polynomial p(x)}\\$

$\text{Now} p(x) = x(4x-10)^3\\=64x^4-480x^3+1200x^2-1000x\\\text{so the terms of terms of } p(x) \text{are} 64x^4,-480x^3,1200x^2,-1000x\\\text{here, by using Factor theorem x is a factor of all the terms but 4x-10 is not. }$