3x/10= 1290
Mutiply by 10 for both sides
3x/10*10= 1290*10
Cross out 10 and 10 , divide by 10 and then becomes 3x
3x=12900
divide by 3 for both sides
3x/3= 12900/3
Cross out 3 and 3 , divide by 3 and then becomes x
x= 4300
Answer: x= 4300
Answer:
721.39 to the nearest hundredth.
Step-by-step explanation:
7 2 1 . 3 9 <----- Quotient
| 52,04,09.0000
| 49
142 | 304
| 284
1441 | 2009
| 1441
14423 | 56800
43269
144269 | 1353100
1298421
54679
Inverse operations are pairs of mathematical manipulations in which one operation undoes the action of the other