Answer:
6x^2 + 2x - 5 (Option C)
Step-by-step explanation:
1. First, add 4x^2 and 2x^2 together (which is 6x^2). You can figure this out by adding 4 and 2.
2. Second, add -5x and 7x (which is 2x)
3. Lastly, subtract 3 and 8, which is -5
WHY DOES THE ANSWER HAVE A NEGATIVE 5?
The equation looks like this: +3 + -8
You are adding 3 to -8, which is the same as subtracting positive 3 and positive 8 (positive times a negative is a negative or a minus sign)
Perimeter is all sides added up.
So, we know the width is 19ft and the length is x feet. We also know that the perimeter is 87 feet.
What we can do is make an equation to solve for x.
2x + 2(19) = 87
First, multiply 2 and 19.
2 x 19 = 38
2x + 38 = 87
Next, subtract 38 from both sides to move 38.
2x = 87 - 38
2x = 49
Lastly, divide both sides by 2 to get the value of x.
x = 49/2
x = 24.5
Thus, the length of the rectangle is 24.5ft
We can plug it into our equation to check if its correct.
2(24.5) + 2(19) = 87
24.5 x 2 = 49
2 x 19 = 38
49 + 38 = 87
Since Louis jumped 270 times in 6 hours this means that she jumped:
45 times per hour.
Now we need to find how many times she jumped per minute to do this we have to remember that one hour has 60 minutes then we divide the number of jumps per hour by the 60 minutes, that is:
This means that she jumps 0.75 times per minute. Finally to find out how many times she jumped in foour minutes we multiply the 0.75 by 4:
Therefore, Louis jumped 3 times in four minutes.
Answer:
x > 7
Step-by-step explanation:
Given
4x + 6 < 6x - 8 ( subtract 6x from both sides )
- 2x + 6 < - 8 ( subtract 6 from both sides )
- 2x < - 14
Divide both sides by - 2, reversing the symbol as a result of dividing by a negative quantity.
x > 7
Answer:
The number is 50.
Step-by-step explanation:
If we express the percentage x% in the form of ratio then it can be written as 
.
Now, it is asked which number if we make 44 % will give 22.
Let the number is given by x.
Then expressing the % as ratio we can write 
⇒ 
( Answer )
