Answer:
The y-coordinate would be 17.5
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or 
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
Let
y ----->material needed in yards
x ----> number of curtains
we know that
For y=5, x=2
Find the value of the constant of proportionality k

substitute the given values of x and y

The linear equation is equal to

If the x-coordinate was 7
then
substitute in the equation x=7 and solve for y


therefore
The y-coordinate would be 17.5
x+y=120_______1
x=4*y_________2
x=4y
substitute 4y for x in equation 1
`4y+y=120
5y=120
eliminate the coefficient of y
y=120/5
y=24
now,input 24 for y in equation 2
`x=4y
x=4*24
x=96
thus, the numbers are
96 and 24
Answer:
15
Step-by-step explanation:
63 - 18 = 45 ( Minus the number of cakes that are left over)
45 / 3 = 15 (Divide by 3 to find out how many cakes they sold each day)
Answer:
5.18%
Step-by-step explanation:
5.76 x 100 = 576
576 ÷ 100 = 5.184
5.184 = 5.18%
Answer:
(2.5,10.5)
Step-by-step explanation:
Given that a ball is thrown verically upwards with an initial velocity. We know that the path is a trajectory as a parabola.
From graph we find that horizontal is in yards and vertical is in feet.
WE have to find the coordinates of A
When ball is thrown upward, acceleration due to gravity is -32 ft/s^2
Since height = s=+h0
we get h0 as initial height.
But without any calculation from the graph we find out these coordinates as
x coordinate = 2.5(since in the middle of 0 and 5)
y coordinate = 10.5(since in the middle of 9 and 12)
(2.5,10.5) is the coordinate of A