For what values of a can you solve the linear system ax+3y=2 and 4x+5y=6 by elimination without multiplying first?

a=-4

Step-by-step explanation:

and

In elimination method we try to eliminate one variable

To eliminate one variable we need to make the coefficients same with different sign

to eliminate the variable x  we need to make the number before x same and with different sign

In the second equation the coefficient of x is 4

so the value of 'a' should be -4 to eliminate

a=-4

Yes, doubling the length will double the volume

Step-by-step explanation:

Given data

Dimension of the rectangular box

Length= 6ft

Width= 8ft

Height= 2ft

The volume of the box is

V= 6*8*2

V= 96 ft^3

Double of the volume = 96*2= 192 ft^3

Check

let us us 12ft as the length to test if the new volume will be 192 ft^3

V= 12*8*2

V= 192ft^#