$12n+9=6-3n\ \ \ \ \ \ |Add\ 3n\ to\ each\ side\\\\
15n+9=6\ \ \ \ \ |Subtract\ 9\\\\
15n=-3\ \ \ \ \ |Divide\ by\ -15\\\\
n=-\frac{3}{15}=\boxed{-\frac{1}{5}}$

6 0

3 years ago

Hello! I can’t tell if 3 is a dilation or not <br><br> Please help!

Rzqust [24]

Answer:

This is not a dilation

Step-by-step explanation:

Dilation (usually represented by is one of the basic operations in mathematical morphology.

Please mark me brainliest!

5 0

3 years ago

Okay so this is a weird one... if I take a medication twice a day for 9 months how many days have I taken that medication??? I h

Delvig [45]

Answer: 273 days i believe

Step-by-step explanation:

jan: 31 days

feb: 28 Days

mar: 31

apr: 30

may: 31

june: 30

july: 31

aug: 31

sept: 30

add all the days together to get 273

7 0

3 years ago

one hose can fill a goldfish pond in 14 minutes, and the two hoses can fill the same pond in 10 minutes, find how long it takes

likoan [24]

Answer:

Step-by-step explanation:

$\frac{1}{14} +\frac{1}{t} =\frac{1}{10}$

Solving this ^^ would equal t=35.

4 0

3 years ago