Ralph's 1-shirt company selts -anirta for $7.50 each with a float rate of $10 for shipping Frank's 1-shirt company sells t-shirts for $10 each with free shipping. A. Write an equation to represent each t-shirt company.

Raph's:_

Frank's:_

B. Solve the system of equations by using the graph.

C . What does the solution mean in the context of the situation?​

step-by-step explanation:

answer is  

c.

36

step-by-step explanation:

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west