Question

Plzzzz help me!!

Answer 1

let

x---------> the length side of the box

y---------> the width side of the box

we know that

h=3 in

V=390 in³

volume of the box=x*y*3-------> 390=x*y*3-----> x*y=130------> equation 1

x=3+y------> equation 2

substitute 2 in 1

[3+y]*y=130-----> y²+3y=130------> y²+3y-130=0

using a graph tool------> to resolve the second order equation

see the attached figure

the solution is

y=10 in

x=3+y-----> x=3+10-----> x=13 in

the answer is

the width is 10 in

Answer 2

Answer:

Volume is length times width times height. So, you would need to do 9 times 3 (27) times 10 (270). Then, you would divide by 10, because it is scaled down by 1/10, leaving you with 27

Step-by-step explanation: