Answer:
200 in all
Step-by-step explanation:
1/9 - (-2/5 - 8/9) = 1/9 + 2/5 + 8/9 = 1 + 2/5 = 7/5 or 1 2/5
Answer:
⟨-5, -1⟩
Step-by-step explanation:
Vector:
A vector is given by its endpoint subtracted by its initial point.
Vector u has initial point at (3, 9) and terminal point at (–7, 5)
Then
![u = (-7, 5) - (3,9) = (-7 - 3, 5 - 9) = (-10,-4)](https://tex.z-dn.net/?f=u%20%3D%20%28-7%2C%205%29%20-%20%283%2C9%29%20%3D%20%28-7%20-%203%2C%205%20-%209%29%20%3D%20%28-10%2C-4%29)
Vector v has initial point at (1, –4) and terminal point at (6, –1).
Then
![v = (6,-1) - (1,-4) = (6-1,-1-(-4)) = (5,3)](https://tex.z-dn.net/?f=v%20%3D%20%286%2C-1%29%20-%20%281%2C-4%29%20%3D%20%286-1%2C-1-%28-4%29%29%20%3D%20%285%2C3%29)
What is u + v in component form?
![u + v = (-10,-4) + (5,3) = (-10+5,-4+3) = (-5,-1)](https://tex.z-dn.net/?f=u%20%2B%20v%20%3D%20%28-10%2C-4%29%20%2B%20%285%2C3%29%20%3D%20%28-10%2B5%2C-4%2B3%29%20%3D%20%28-5%2C-1%29)
⟨-5, -1⟩ is the answer.
Hey there! I'm happy to help!
Let's call the hamburgers h and the cheeseburgers c.
h+c=500
c=h-50
Let's plug this value for c into the first equation to solve for h.
h+h-50=500
2h-50=500
Add 50 to both sides.
2h=550
Divide both sides by 2.
h=275
Therefore, 275 hamburgers were sold on Wednesday.
Have a wonderful day! :D
$72.
20% of 60 is 12
$12 + $60 = $72