B. 12 1/8
C. 19 4/8
D. 19 5/8
A. 4%
B. 25%
C. 30%
D. 15%
Answer:
Option C 30%
Step-by-step explanation:
let x%of 50 is 15
X/100×50=15
50x/100=15
X/2=15
X=30
So option C. (30%) is correct
30% is the answer........
Martinique: 4.05*10^5
Answer:
B
Step-by-step explanation:
One way to tell is to put both equations into slope-intercept form. That form is usually written where m is the slope and b is the y-intercept.
Solve the first equation for y.
The slope of this line is -3, and its y-intercept is 5/2.
Solve the second equation for y.
The slope of this line is -3 and its y-intercept is 2.
The lines are parallel because they have the same slope and different y-intercepts. There is no solution to the system.
The x represents time in seconds while y represents the depth of the submarine and the equation with constraint will be y = 10.5x + 50.
Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.
In other words, an equation is a set of variables that are constrained through a situation or case.
As per the given,
The slope m = rate of descending = 10.5 ft/s
The y-intercept c = initial depth of submarine = 50 ft
Thus, y = mx + c converts as,
y = 10.5x + 50
Hence "The x represents time in seconds while y represents the depth of the submarine and the equation with constraint will be y = 10.5x + 50".
For more about the equation,
#SPJ5
Answer:
The constraints on the x-values or independent variable – time are:
0 s < time < 5 s
The constraints on the y-values or dependent variable – Depth are:
50 ft < Depth (below sea level) < 102.5 ft
Step-by-step explanation:
Boundary restrictions that are placed upon the variables in an equation are called the Constraints.
The x-values are the independent variables in an equation and in our case it is time.
The y-values are the dependent variables in an equation and in our case it is depth (below the sea level).
The rate of descend provided in the question is constant and is equal to 10.5 ft/s.
We can write our equation of Depth as follows:
Depth (below sea level) = 50 + 10.5*(time)
The constraints on the x-values or independent variable – time are:
0 s < time < 5 s
We can put the boundary values of x variable constraints in the equation of Depth to find the constraint on y-values or dependent variable.
Depth (below sea level) = 50 + 10.5*(time)
Depth (below sea level) = 50 + 10.5*(0), at time 0 s
Depth (below sea level) = 50 ft
Depth (below sea level) = 50 + 10.5*(5), at time 5 s
Depth (below sea level) = 102.5 ft
So the constraints on the y-values or dependent variable – Depth are:
50 ft < Depth (below sea level) < 102.5 ft
Answer:
$14
Step-by-step explanation:
x/17.5=20/100, do the butterfly method
17.5x20=350
350/100= 3.5
17.5-3.5=14
Answer:14.00
Step-by-step explanation:
17.50*80/100 = 14.00