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wel
3 years ago
13

-9=-3(x+2)+5x what does x equal

Mathematics
2 answers:
erastova [34]3 years ago
6 0

Exact Form:

x=-3/2

Decimal Form:

x=−1.5x

Mixed Number Form:

x=−1 1/2

atroni [7]3 years ago
6 0

Answer:

-1.5

Step-by-step explanation:

-9=-3(x+2)+5x  (switching the sides of the formula can make it easier)

-3(x+2)+5x=-9

2x-6=-9

add 6 to both sides --->   2x-6+6=-9+6

simplify ----> 2x=-3

divide both sides by 2 --->  2x/2 = -3/2

simplify ---> x= -3/2

decimal form- -1.5

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The expression 3^2 ∙ 3^n simplifies to 3^20.
tiny-mole [99]

Answer: 18

<u>Step-by-step explanation:</u>

3² * 3ⁿ = 3²⁰

3⁽²⁺ⁿ⁾  = 3²⁰

 2 + n = 20

<u> -2      </u>   <u>  -2</u>

       n = 18

7 0
3 years ago
What is the perimeter of a triangle with sides<br> 14 inches, 8 inches, and 16 inches in length?
slamgirl [31]

Answer:

38 inches

Step-by-step explanation:

just add them all together.

4 0
3 years ago
PJ will begin her cake deliveries at 12:20 . She asked to remind her 30 minutes before she has to leave. What time should I remi
mojhsa [17]

Answer:

At 11:50  

Step-by-step explanation:

1. Subtract the hours and the minutes separately

12:  20

<u>- 0</u>: <u> 30</u>

12: -10

2. If the minutes are negative, subtract 1 from the hours and add 60 to the minutes.

12:    -10

<u> - 1</u>: <u>+ 60 </u>

11:   50

You should remind PJ about her deliveries at 11:50.

4 0
3 years ago
2.6 Puzzle time how can you make sure to start a fire with two sticks?
enyata [817]

Answer:

"Make sure one of them is a match"

Step-by-step explanation:

It takes a little practice and above all to generate heat through friction. By raising the temperature of the woods, it is possible to reach the ignition temperature through friction.

Fires require good equipment and good technique. The majority of times it fails is due to a lack of technique and equipment. This can make learning difficult.

For wood selections, you generally want to comply with the following:

  • Dry Tinder
  • You should be able to press the wood. If you can't, then it is too difficult.
  • Wood not very strong but not soft
  • Not sap in the wood

Make the friction forming a 90 degree angle between them, like a cross. Keep one of the sticks supported on the floor vertically, and the other horizontally rubbing it against it at rapid speed, at intervals.

Under this wood put dry tinder that is able to ignite quickly once you generate the fire.

And for the Puzzle remember the orden of the words:

<h2>Make sure one of them is a match. </h2>

Use tree wood, rub and heat until ignition is generated.

5 0
3 years ago
I spent 15 percent of my money on food last week. If I had $56 how much money was spent on food
liq [111]
15% of 56 is
0.15 * 56 is 8.4
You spent 8.4 dollars on food

Hope this helps :)

6 0
3 years ago
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