Answer:
It is a linear equation in k. It might be referred to as a "3-step" or maybe even a "4-step" linear equation.
The solution is ... k = -17/11
Step-by-step explanation:
Start by eliminating parentheses. Since the numbers on the right are both even, you can do this by dividing by -2.
9k +8 = -9 -2k
Add 2k-8:
11k = -17
Divide by the coefficient of k.
k = -17/11
Answer:
$6.24
Step-by-step explanation:
1 orange=%0.13
2 orange=5 green=$0.26
10 green=2 blue= $0.52
.52+.26=.78
1 red=3 blue=$0.78
0.78*8=6.24
Answer:
The graph is attached.
Step-by-step explanation:
Let be "x" the number of metamorphic samples and "y" the number of sedimentary samples.
You know that you want to to have at most 25 samples, then:
And you want to have at least 3 times as many sedimentary samples as
metamorphic samples, then:
Therefore, the system of inequalities that model the situation is:
The y-intercept of the line is:
And the x-intercept is:
Knowing this, you can graph the line
The y-intercept of the line is:
And the x-intercept is:
Knowing this, you can graph the line.
Observe the graph attached, where the solution of the system of inequalities is the intersection of the regions.
Divide total price by amount bought:
120.96 / 144 = 0.84
It cost $0.84 for 1 square foot.