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!
Answer:
<em>8 more men are needed to complete the job</em>
Step-by-step explanation:
<u>Proportions</u>
This problem can be solved by step-by-step reasoning applying proportions:
- 16 men working 9 hrs a day complete the job in 14 days
- 16 men working 1 hr a day complete the job in 14*9 days
The above statement stands because the fewer hours of work, the more time the job needs to be completed. Let's continue.
- 1 man working 1 hr a day complete the job in 14*9*16 days
The same reasoning applies here, fewer men=more days.
Now for the second condition. Increase the hours/day:
- 1 man working 7 hrs a day complete the job in 14*9*16/7 days
More hours/day=less days to complete the job
- x men working 7 hrs a day complete the job in 14*9*16/(7*x) days
We know this last time is 12 days, thus:
Solving for x:
24 men are needed now, this is an increase of 24-16=8 more men
8 more men are needed to complete the job
First add -2 and -6 together
Since these are both negitive signs you will add normally and and a negitive sign to the answer
-8
so you have...
-8 + 7
Since there is a negative (-8) and a positive (7) you will treat this as a normal subtraction problem, except your answer will have the sign of the biggest number
8 - 7 = 1
8 is the bigger number and has a negative sign therefore the answer is a negative number
so...
-8 + 7 = -1
-1
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
she could travel 220miles