Let the two numbers be x and y, with y being larger than x.
Then y=3x+1.
Also, 8x-2y= 10.
The first equation has already been solved for y. Substitute 3x+1 for y in the second equation:
8x-2(3x+1)=10, or 8x - 6x - 2 = 10, or 2x = 12 and x = 6.
If x = 6, then by the first equation y must be 3(6)+1, or 19.
The numbers are 6 and 19.
Answer:
the slope is 5
Step-by-step explanation:
Solve for y
20x -4y = 40
Subtract 20x from each side
20x-20x -4y = -20x +40
-4y = -20x+40
Divide each side by -4
-4y/-4 = -20x/-4 +40/-4
y = 5x -10
This is in slope intercept form y = mx+b where m is the slope and b is the y intercept
The slope is 5
If a number can be represented by a fraction, it is a rational number. So yes, 1815 is a rational number
Answer:
2.57
Step-by-step explanation:
1/4×22/7×3×3=7.07
1/2×9=4.5
7.07-4.5=2.57
Answer:
20
Step-by-step explanation:
x^2 -y +1
Let x =5 and y = 6
5^2 -6+1
25-6+1
19+1
20
