30/12 in simplest form is 5/2 (cause 6 * 5 = 30 and 6 * 2 = 12)
40/16 in simplest form is 5/2 (cause 8 * 2 = 16 and 8 * 5 =40)
so yes they're equivalent;
30/12 = 40/16
Hope that helps :D have a nice day!
Answer:
well, we only no that
2l + 2w is 80
(lengths and widths on all 4 sides
and that w * l is A
so the function should be w times what's left for l, but also expressed by something with w
2l + 2w = 80 | -2w
2l = 80 -2w | devide by 2
l = 80 - w
now we can substitute l in
A = w * l
so that we only need w's
A(w) = w * (80-w)
for any w it will give us the area, makes only sense for 0<w<80
You
hit the right target!
![\[\Huge\color{}\checkmark\]](https://tex.z-dn.net/?f=%5C%5B%5CHuge%5Ccolor%7B%7D%5Ccheckmark%5C%5D)
It is 9200
Just to be sure, substitute with x = 2 in the equation.
Answer: 219,185
-Multiply the place values to find the answer,
