Answer: v= 32-f
Step-by-step explanation: hope this helps! Have a good day!
Answer:
x= -1
Step-by-step explanation:
1. First, you need to combine like terms. Constants with constants and variables with variables. Since there is only one variable, there is nothing to combine it with so nothing happens to it. The constants, on the other hand, can combine.
2. You have to subtract 28 from 28 and 14 so that +28 can cancel out on the left side and combine on the right.
3. That will leave you with 14x= -14.
4. Now you need to get x on its own so you need to divide 14 (opposite of multiplication to cancel out) on both sides.
5. That will leave you with x= -1. That is your final answer.
Hope this helps! Please vote me as Brainliest. Let me know if you need more of an explanation. Remember, cheating is never the answer. Try your best before you seek answers. Hope it's not too late. Good luck with whatever you are doing! Have an amazing day!
Answer:
A. Last month's electricity bill was 5.4 kW-h less than 30% of this month's bill.
Step-by-step explanation:
The given expression is:
The above expression tells us that 30% is of the quantity 'b' and 5.4 is being subtracted from the result of the percentage.
Choice A:
If we consider the present month's bill as 'b'. Then 30% of present month's bill can be represented as 30% of b = 30%b.
Now, if the previous month's bill is 5.4 kW-h less than 30% of this month's bill, then this statement can be represented as:
Previous bill = 30% of Current bill - 5.4 = 
Hence, choice A justifies the given expression.
Choice B:
The expression for choice B could be number of songs available for download from 30% of 'b' artists is 
.
Choice C:
5.4 speeches doesn't make any sense.
Choice D:
5.4 less than 'b' bowls mean 
. Now, 30% of this is 
.
This is also not the correct expression.
Therefore, only choice A is the correct justification of the given expression.
Answer:
1.33
because you have to divide
Answer:
5
Step-by-step explanation:
The general term of an arithmetic progression is ...
an = a1 +d(n -1)
where a1 is the first term and d is the common difference.
Here we are given that ...
a5 = 3×a2
a5 +a6 +a7 +a8 = 240
__
In terms of a1 and d, these tell us ...
a1 +d(5 -1) = 3(a1 +d(2 -1))
a1 +4d = 3a1 +3d . . . . . eliminate parentheses
d = 2a1 . . . . . . . . . . . subtract a1+3d
and ...
(a1 +4d) +(a1 +5d) +(a1 +6d) +(a1 +7d) = 240
4a1 +22d = 240
Substituting for d, we have ...
4a1 +22(2a1) = 240
48a1 = 240
a1 = 240/48 = 5
The first term is 5.
