Answer:x=10
Step-by-step explanation:
Answer:
![T = 3 + {S}^{2}](https://tex.z-dn.net/?f=T%20%3D%203%20%2B%20%20%7BS%7D%5E%7B2%7D%20)
Step-by-step explanation:
Fill in the table and you will see the formula above gives you the total. Substitute S=10 for you answer
How derive the formula?
You have to realize that you are give 3 to start with, so that's your starting constant. Filling in the table and subtracting 3 show help you see that the square of want is left after the subtraction is the square of the step.
Let me know is you need more clarification
Answer:
The rate of change in Erinn's hourly wage per year is ![1.25\$\ hour/year](https://tex.z-dn.net/?f=1.25%5C%24%5C%20hour%2Fyear)
Step-by-step explanation:
we have that
x ----> the time in years that she worked at a company
y ----> represent the hourly wage
----> linear equation that represent the situation
Solve for y
![4y=5x+32](https://tex.z-dn.net/?f=4y%3D5x%2B32)
![y=(5/4)x+32/4](https://tex.z-dn.net/?f=y%3D%285%2F4%29x%2B32%2F4)
![y=1.25x+8](https://tex.z-dn.net/?f=y%3D1.25x%2B8)
The slope m of the linear equation is
![m=1.25\$\ hour/year](https://tex.z-dn.net/?f=m%3D1.25%5C%24%5C%20hour%2Fyear)
The rate of change in Erinn's hourly wage per year is equal to the slope of the linear equation
so
The rate of change in Erinn's hourly wage per year is ![1.25\$\ hour/year](https://tex.z-dn.net/?f=1.25%5C%24%5C%20hour%2Fyear)
<span>1+5+9+13+17+21+25+29+33+37+41+45+49+53+57+61+65+69+ 73+77+81+85+89+93+97+101+105+109+113+117+121+125+129+133+137+141 = 2555</span>
Note that if we add each side of the 2 equations, y will cancel out:
-12x-y+(17x+y)=6+4
5x=10
x=2
Substituting x=2 in either of the equations, we find the value of y.
Let's use the first equation:
-12x-y=6
-24-y=6
-y=24+6
-y=30, so y=-30.
Thus, the solution is (2, -30)
Answer: C