## anonymous one year ago Paras custom tee experienced fixed cost of $300 and a variable cost$4 a shift write and equation that can be used to determine the total expense encountered by paras custom tee. The cost of producing 7 shirts is

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1. pooja195

C(x) = 300 + 4x x be the number of shirts and let C(x) be the total cost of producing x shirts. You want to find the cost of producing 7 shirts right? so plug in 7 in place of x like this $\huge~\rm~C(x)= 300 + 4(7)$ solve

2. anonymous

328

3. pooja195

Good :) so \$328.00

4. pooja195

And then i gave you the equation above.

5. anonymous

what is "x" if (x-3)^2=x^2+(-3)^2

6. imqwerty

i will help u and i won't take owlbucks :) $(x-3)^2=x^2+(-3)^2 => (x-3)^2-(x)^2 =(-3)^2$ apply this identity$a^2-b^2=(a+b)(a-b)$ $(x-3-x)(x-3+x)=9$ $(-3)(2x-3)=9$divide both sides by -3 $(2x-3)=-3 =>2x=6 =>x=3$ :)