Answer:
6
Step-by-step explanation:
2.5x6=15 and thats the closest it'll get. To be exact, it's 6.2, but i dont know if you need that.
The value of the constant a will the system of linear equations 6x-5y=3 and 3x+ay=1 have no solution is -5/2
<h3>System of equation</h3>
For a system of equation to have no solution, the expression on both sides must be different.
Given the system of equation
6x-5y=3 and
3x+ay=1
For the equations to have no solution, the a1/a2= b1/b2
Substitute
6/3 = -5/a
Cross multiply
2 = -5/a
a= -5/2
Hence the value of the constant a will the system of linear equations 6x-5y=3 and 3x+ay=1 have no solution is -5/2
Learn more on system of equation here: brainly.com/question/14323743
#SPJ1
Answer:
$420
Step-by-step explanation:
First convert the room measurements from feet to yards to match the unit of measure of the carpet.
Room size is 12 feet by 21 feet.
3 feet = 1 yard.
12/3 = 4 yards
21/3 = 7 yards
4 yards times 7 yards = 28 square yards
28 square yards times $15 per square yards = $420.
The top and bottom of the rectangle need to be equal and the two sides also need to be equal.
Set the equations to equal each other and solve for the letter.
Top and bottom:
3x-5 = x +1
Subtract 1x from each side:
2x -5 = 1
Add 5 to both sides:
2x = 6
Divide both sides by 2:
x = 6/2
X = 3
SIdes:
Now you know what X is replace x in the left side equation and solve:
2x-4 = 2(3) -4 = 6-4 = 2
The left side = 2, so the right side also needs to equal 2:
y-3 = 2
Add 3 to both sides:
y = 5
(-3,-3) should be the coordinates
