Hello,
If 1/3 of 480 students have traveled overseas, that means (1/3)(480) = 160 students have traveled overseas.
If 15% of the 160 students have been to Australia, then 1 - (0.15) = 0.85 = 85% of the 160 students have not been to Australia.
85% of 160 students = (0.85)(160) = 136 students have not been to Australia.
136 students have not been to Australia.
Hope this helps!
4 + 2 [ 10(6 * 2 - 6) - 40 ]
4 + 2 [ 10(12 - 6) - 40 ]
4 + 2 [ 10(6) - 40 ]
4 + 2 [ 60 - 40 ]
4 + 2 [ 20 ]
4 + 40
44 <===
7.1-0.6=6.5 is the answer