<h3>Answer: RS = 16</h3>
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Explanation:
The ratio QR : RS : ST is equal to 1 : 4 : 5
This means we have the following three equations
For some positive number x.
Note the ratio QR : RS : ST turns into x : 4x : 5x, which reduces to 1 : 4 : 5 when we divide all three parts by x
.
Along with those three equations, we'll also use QT = 40 as well.
Now turn to the segment addition postulate. Plug in the equations mentioned earlier, and solve for x
.
QT = QR + RS + ST
40 = x+4x+5x
40 = 10x
10x = 40
x = 40/10
x = 4
So we know that
QR = x = 4
RS = 4x = 4*4 = 16
ST = 5x = 5*4 = 20
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As a check,
QR + RS + ST = 4 + 16 + 20 = 40
which is the same as QT = 40
Therefore, we've confirmed that QR + RS + ST = QT is correct and we've confirmed our answers.
Answer:
I believe the best answer would be the time between two successive crests.
Answer:
Option B.
Step-by-step explanation:
The given equations is
The correct steps to solve the above equation are
1. Using distributive property, we get
2. Combining like terms, we get
3. Using addition property of equality, add 2.3x on both sides.
4. Using addition property of equality, add 16.4 on both sides.
5. Using division property of equality, divide both sides by 17.9.
In step 2, the like terms were not combined properly on the right side of the equation.
Therefore, the correct option is B.
If you are trying to subtract a negative from a negative, it will be negative.
ex. -2-2 is the same as (-2)(-2)