Answer:
a. where's the function?
b. x + y = 12: Yes
x=3-y : Yes
y=8+x^2: Yes
Step-by-step explanation:
b. meet demand: 2 inputs -> 1 output.
R = = 3.6 and A = 2
given that R is inversely proportional to A, then
R = ← k is the constant of variation
To find k use the condition R = 12 when A = 1.5
k = RA = 12 × 1.5 = 18
the equation is therefore
R =
when A = 5, then
R = = 3.6
when R = 9, then
9 = ( multiply both sides by A )
9A = 18 ( divide both sides by 9 )
A = 2
Y=-1/4x-9/2
Not sure if that’s correct but I tried
Ok so basically, the number of student tickets is 3x, where x=the number of adult tickets sold. And we know that s(for student tickets)+x=480 total tickets sold. So if we replace s with 3x we have 3x+x=480, or 4x=480. We divide by 4 and get x=120, which is the amount of adult tickets sold.
Answer:
C. 772.5 kg
Step-by-step explanation:
We have been given that a hot air balloon holds 4,328 cubic meters of helium. The density of helium is 0.1785 kilograms per cubic meter.
To find the amount of helium in the balloon, we will use density formula.
Upon substituting our given values, we will get:
Upon rounding our answer to nearest tenth, we will get:
Therefore, the balloon contains 772.5 kilograms of helium and option C is the correct choice.