Answer:
8.1
Step-by-step explanation:
Answer:
x=2
Step-by-step explanation:
If 3x + y = 7, then y= 7 - 3x.
Substitute in x - 2y = 0
So:
x - 2(7-3x)=0
x-14+6x=0
7x=14
x=2
Step-by-step explanation:
For no. 8
2x + 1°+ 33° = 90° { Being complementary angles }
2x + 34° = 90°
2x = 90° - 34°
2x = 56 °
x = 56° / 2
x = 28°
For no. 10
5x + 12 = 6x - 10 ( being vertically opposite angles)
6x - 5x = 12 + 10
x = 22
Hope it will help :)❤
Answer:
Step-by-step explanation:
Remember that product means multiply..
so
we have
6300: The 3 is in the hundreds place so its value is 3*100=300
530: The 3 is in the tens place so its value is 3*10=30
The value is 10x as much since 300=30*10
