Answer:
x = 21
Step-by-step explanation:
The 2 angles form a straight angle and are supplementary, thus
7x + 9 + 2x - 18 = 180, that is
9x - 9 = 180 ( add 9 to both sides )
9x = 189 ( divide both sides by 9 )
The 2 angles form a straight angle and are supplementary
7x + 9 + 2x - 18 = 180
9x - 9 = 180
9x = 189
2
620
100% must be the the answer so 700% must be 7 times that number.
4340÷7=620
57 mph
342/6=57
125000mm
explanation
solution:
here,
1m=1000mm
now,
125m= 125×1000
= 125000
hence, 125m= 125000mm
