6r-2(r+8)=11 Solve equation

1 answer:

4 0

$6r-2(r+8)=11\ \ \ \ |\text{use distributive property}\\\\6r-2(r)-2(8)=11\\\\6r-2r-16=11\ \ \ \ \ |+16\\\\4r=27\ \ \ \ \ |:4\\\\r=6.75$

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Is my answer correct??

Ivanshal [37]

Answer: Last option.

Step-by-step explanation:

For this exercise it is important to remember that a Right triangle is a triangle that has an angle that measures 90 degrees.

By definition, given a Right triangle, if you draw an altitutde from the vertex of the angle that measures 90 degrees (The right angle) to the hypotenuse, the measure of that altitude is the geometric mean between the measures of the two segments of the hypotenuse.

In this case, you have the Right triangle $EFH$ given in the picture attached.

You can notice that $FG$ goes from the vertex of right angle ( $\angle F=90\°$ ) to the hypotenuse $EH$ . Therefore, it divides the hypotenuse into two segments. These are:

$EG$ and $GH$

Therefore, $FG$ is the geometric mean of the segments $EG$ and $GH$ .

6 0

3 years ago

in the 1980s, an average mortgage range was around 18.75%. how much less per month would a $125,000 30 year mortgage be today if

tino4ka555 [31]

Answer:

$1289.48

Step-by-step explanation:

A financial calculator tells you the payment with the higher interest rate is $1960.51, and that with the lower interest rate is $671.03. The difference in payment amounts is ...

$1960.51 -671.03 = $1289.48