Answer: 
Step-by-step explanation:
Negative four -> 
Times the sum of a number and 3 -> 
Is at least 28 ->
If the variables disappear and you get a statement that is never true,such as 0=5 or 4=7 then there is no solution meaning when graphed the two equations will form parallel lines which never interact
Answer:
Yes it does because 4,567 is just like 34,811 you just add the 3 to the first one an then look at the thousands place an it is the sam look
..4,567
34,811
where the . are you just add a number for say like 3 an than it is the same
Hope it helps:)
A: 178 feet away
B: 14 feet (?)
C: 1250 away from jonathon
1222feet away from seth
1386 away from mason (?)
Answer: The answer is 8.
Step-by-step explanation: The first step is to convert the expression into figures. We shall call the unknown number Y. So if we are told “the square of a number,” that means Y squared, or better still, Y^2. Further we are told “the difference between the square of a number and 40” and that can be written as;
Y^2 - 40.
Next we are told that this expression is equal to 3 times that number (that is 3Y). That can now be written out as follows,
Y^2 - 40 = 3Y
If we move all expressions to one side of the equation, what we would have is,
Y^2 - 3Y -40 = 0
(Remember that when a positive value crosses to the other side of an equation it becomes negative and vice versa)
We now have a quadratic equation
Y^2 -3Y - 40 = 0
By factorizing we now have
(Y -8) (Y + 5) = 0
Therefore Y - 8 = 0 or
Y + 5 = 0
Hence, Y = 8 or Y = -5
Since we are asked to calculate the positive solution, Y = 8
