Solve for x in first equation:
x-2y=7
Add “2y” to both sides
x=2y+7
Put this in to second equation:
3(2y+7)+2y=21
Solve for y:
Distribute the 3 into the ()
6y+21+2y=21
Combine the like y terms
8y+21=21
Subtract 21 from both sides
8y=0
Divide by 8 on both sides
y=0
Put this into the first solved equation:
x=2(0)+7
Solve for x:
Multiple 2(0)
x=0+7
Add 0 and 7
x=7
So the value of x is positive 7.
Answer: in 10 days the company can make 87000 notebooks considering the company produces at the same rate.
Step-by-step explanation:
Think 1740=2d
X=10d
Cross multiply
2x= 17400
X= 8700
8700 x 10d = 87000
Answer:
2. y = 7
3. x = 4
Step-by-step explanation:
Slope 0 is when the line is horizontal.. has a constant coordinate
(-5,7) lies on the line so the x-coordinate is 7
Equation: y = 7
A vertical line has all same x-coordinates.
Since (4,-2) is on the line, every point had x-coordinate of 4.
Equation: x = 5
If the discount is 15 percent, he still pays (100-15) or 85%
125.99 * 85%
125.99 * .85 = 107.09 is the price he pays for the rod
107.09 * .03 =3.21 is the sales tax
107.09+3.21=110.30 is the price of the rod with the discount and the tax
Answer: 125.6 ml
Step-by-step explanation: V = (3.14) (2^2) (10)
V = (3.14) (4)(10)
V= 125.6 cm^3
1 cubic centimeter = 1 milliliter
