Answer:
8
Step-by-step explanation:
3/5*20 = 12 - this is how many people ate cake
20-12 = 8 - this is how many people ate ice cream
Step-by-step explanation:
thanks you too merry Christmas
Answer:
there will be 16 bags
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
I think it is proportional relationship. I hope my answer help you.
Answer:
y =
(x - 5)² - 2
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k) = (5, - 2), thus
y = a(x - 5)² - 2
To find a substitute (7, 0) into the equation
0 = a(7 - 5)² - 2
0 = 4a - 2 ( add 2 to both sides )
2 = 4a ( divide both sides by 4 )
a =
= 
y =
(x - 5)² - 2 ← in vertex form