Y = 32x is a proportional relationship. it has a constant ratio and passes through the origin--remember that the base equation, straight through the origin (0, 0), is y = x.
your other answer choices do not pass through the origin. choice 2 can be changed to read y = x + 4. an equation with a y-intercept 4 does not cross through the origin; the y-intercept must be 0 to pass through the origin. choice 3 has another y-intercept that isn't 0.
Answer:
$972.8
Step-by-step explanation:
$12.80 x 76 = $972.8
D = {3,6,12,18)
R = {5,7,9,10}
It is not a function since for the 6 value of x, there are two different y outputs
We know that
<span>Joey and Rita paint a room in 8 hours
so
100%----------> 8 hours
X%----------> 1 hour
x=100/8-----> 12.5%
that means
</span>Joey and Rita paint 12.5% of a room in 1 hour
Billy paint a room in 12 hours
so
100%----------> 12 hours
X %------------> 1 hour
x=100/12----> x=8.33 %
that means
Billy paint 8.33% of a room in 1 hour
i<span>f all three work together
then
All three paint (12.5%+8.33%) in 1 hour
20.83%------------> 1 hour
100%------------> x
x=100/20.83-----> x=4.8 hours
the answer is
4.8 hours</span>