Step-by-step explanation:
In my opinion the reason 4 is incorrect
Answer:
1
Step-by-step explanation:
3x+5=8
Group like terms
3x=8-5
3x=3
Divide both side by the co-efficient of x which is 3
3x/3=3/3
x=1
Answer:
150 kilometres
Step-by-step explanation:
Imagine it as a ratio 6 : 100
If they have given you the first side which is 9 you need to figure out the other side (9 : ?)
To do this you simply need to figure out how you get from 6 to 9 which is times by 1.5
Then to find the other side you do the same as they are proportional to each other
So 100 times by 1.5 which is 150
This gives you the answer that you can travel 150 kilometres with 9 litres of fuel
Percent change is (original-new)/(original), then multiply by 100
Answer:
3440
Step-by-step explanation:
The total number of people polled is 150.
The total number of people who said they'd vote for Candidate #2 is 78.
The number of undecided voters is 7.
Assuming undecided voters don't vote, Candidate #2 can expect to win 78/143 = 54.5% of the votes.
75% of the 8400 registered voters will vote, or 6300.
So Candidate #2 can expect to win 3440 votes.
