The first poster is not an accurate representation of the painting, but the second poster is an accurate representation because the ratio between the first and original lengths did not equal the ratio between the first and original widths but the second poster's ratios were equal.

= - 20
You can subtract the numbers in the parenthesis:
(3-11) = (-8)
Multiply the denominator to both sides so it cancels out and isolates the variable

× -8 = - 20 × -8
-8 and -8 cancels out
k = 160Quick check:

= -20

= - 20
- 20 = - 20
Yes its right
the answer is:
k =160
..........................
Answer:
16 milliliters of 2% solution
48 milliliters of 10% solution
Step-by-step explanation:
x = 2% solution
y = 10% solution
System of Equations:
x + y = 64
.02x + .10y = 64(.08)
use Substitution: y = 64 - x
.02x + .10(64 - x) = 5.12
.02x + 6.4 - .10x = 5.12
-.08x = -1.28
x = 16
y = 64 - 16 which equals 48
Answer: y= 4/3x + 19/3
Step-by-step explanation: See the attachment below! Sorry, my handwriting is bad on computer, I've also attached notes to this lesson for you!!!