Math
posted by sandy on .
Please Check My Answer I don't know if they are right or wrong and if they are wrong can u give me the correct answers. ? Thanks PS: The answers are the * one's.
1) 2/3 = 12/x
x= 18
x= 12
x= 36
x= 8 ****************
2) 6/11 = 84/x
x= 40 **************
x= 120
x= 254
x= 154
3) 22miles/55 hours = 12miles/h hours
x= 48
x= 30 *************
x= 45
x= 22

Sorry for # 3 is like this :
3) 22miles/55 hours = 12miles/h hours
48
30 *************
45
22 
3) is correct. The other two are wrong.

2/3 = 12/x
corss multiply we get 2x = 36
x = 18
6/11 = 84/x
cross multiply we get 6x = 11 * 84
x = 154
same thing for 3, 22h = 55*12
2 h = 5*12
h = 30 
Thank You! Ms. Sue & Sam :)