The line on top of a number stands for recurring. Recurring means that it goes on forever. They're usually on the decimal number, like 1/3 is equal to 3.33333 recurring, but you'd put a line on top of one or two threes.
Answer:
I got 6-7-9-5
Step-by-step explanation:
C and D is 1 more than A and B while having the lowest number, which also means it has the highest number. I started with giving C 9 and subtracting 4 and giving D 5, then I chose 2 numbers between 9 and 5 for A and B. If I gave B 8, then A would have to be 5, but D is already the lowest number so I gave B 7 and A 5 which works out with the requirements. I guess I got lucky when choosing 9 for C, but if 9 didn't work, then I'd go down to 8. I suspected 9 would work because B had to be 7 or 8 while not being the highest number and being less then C and D while being added to A. Make sure to leave feedback!
Answer:
x = 50
Step-by-step explanation:
The two angles are vertical angles, so they are congruent. Congruent angles have equal measures. Set the angle measures equal to each other, and solve the equation for x.
2(x + 10) = 3x - 30
Distribute on the left side.
2x + 20 = 3x - 30
Subtract 2x from both sides.
20 = x - 30
Add 30 to both sides.
50 = x
x = 50