8m + 2q = 18.00
3m + q =. 7.50
8m + 2q = 18.00
-6m - 2q = -15.00
2m = 3.00
m = $1.50 each muffin
3(1.50) + q = 7.50
4.50 + q = 7.50
q= $3.00 for each quarter of milk
To make this easier, first draw or imagine a vertical line at x=2
Find where the vertical line and the graph intersects.
Draw or imagine that point of intersection.
Now, draw or imagine a horizontal line that goes through the point of intersection.
That horizontal line tells us the the value of the function by passing through that mark that says "-2"
The function's value at x=2 is -2.
Have an awesome day! :)
Answer:
2960
Step-by-step explanation:
360 x 20 = 7200
212 x 20 = 4240
7200-4240 = 2960
Recall the formula for determining the interest using simple interest
![\begin{gathered} I=Prt \\ \text{where} \\ P\text{ is the principal amount} \\ r\text{ is the rate in decimal form} \\ t\text{ is time} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20I%3DPrt%20%5C%5C%20%5Ctext%7Bwhere%7D%20%5C%5C%20P%5Ctext%7B%20is%20the%20principal%20amount%7D%20%5C%5C%20r%5Ctext%7B%20is%20the%20rate%20in%20decimal%20form%7D%20%5C%5C%20t%5Ctext%7B%20is%20time%7D%20%5Cend%7Bgathered%7D)
Convert the rate into decimal form by dividing by 100%
![7\%\div100\%=0.07](https://tex.z-dn.net/?f=7%5C%25%5Cdiv100%5C%25%3D0.07)
Substitute the following values
P = $1300, r = 0.07, t = 6/12 (12 months in a year, only 6 months has passed)
![\begin{gathered} I=Prt \\ I=1300\cdot0.07\cdot\frac{6}{12} \\ I=91\cdot\frac{1}{2} \\ I=45.5 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20I%3DPrt%20%5C%5C%20I%3D1300%5Ccdot0.07%5Ccdot%5Cfrac%7B6%7D%7B12%7D%20%5C%5C%20I%3D91%5Ccdot%5Cfrac%7B1%7D%7B2%7D%20%5C%5C%20I%3D45.5%20%5Cend%7Bgathered%7D)
Therefore, Margo will pay back $45.50 in interest.