5 | 8 |12
40|35 |103
29|68 |148
65|172|324
Answer:
y= - 12
Step-by-step explanation:
Answer:
y = 10
x = 25
Step-by-step explanation:
From the U theorem the sum of these two angles 120+2x+y = 180
same goes for the bottom part too:
2x-y+140 = 180 now add two equations up
120+2x+y + 2x-y+140 = 180 + 180 add like terms (-y will eliminate +y)
4x + 260 = 360 subtract 260 from both sides
4x = 100 divide both sides by 4
x = 25 since the sum of 2x-y+140 = 180 we can find the value of y by replacing x with 25
2*25 - y + 140 = 180
50 - y + 140 = 180 add like terms
190 - y = 180 subtract 190 from both sides
-y = -10 and y = 10
Answer:
4/9
Step-by-step explanation:
1/3 divided by 3/4
find the reciprocal of 3/4
reciprocal of 3/4 = 4/3
multiply 1/3 x 4/3 which is 4/9
Answer:
Step 1: Multiply the entire first equation by 2.
Step 2: Rewrite the system of equations, replacing the first equation with the new equation.
Step 3: Add the equations.
Step 4: Solve for x.
Step 5: Find the y-value by substituting in 3 for x in either equation.
Step 6: Identify the solution as an ordered pair.
