1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
TEA [102]
3 years ago
11

If 2x + y = 12 and x + 2y = -6, then find the value of 2x + 2y

Mathematics
1 answer:
Sedaia [141]3 years ago
3 0
2x + y = 12
2x = 12 - y

x + 2y = -6
2y = -6 - x

2x + 2y
12 - y + (-6) - x
12 + (- 6) - y - x
12 - 6 - y - x
6 - y - x

Answer: - x - y + 6
You might be interested in
On a snorkeling trip, Betina spotted 27 different kinds of fish. That is 3 times as many as her younger sister Lucia spotted. Ho
netineya [11]
Betina: 3 units
lucia: 1 unit

27÷3 = 9
4 0
4 years ago
Read 2 more answers
To change knots per hour to miles per hour, use the expression 1.15k, where k is the speed in knots per hour. A plane is flying
Oduvanchick [21]
All you need is mulitplication. 300 times 1.15 is 345 miles per hour. You're welcome!
7 0
4 years ago
Convert 6 feet into meters. round to the nearest tenth
kirza4 [7]
20 feet.

..........
7 0
3 years ago
Read 2 more answers
What is 78/10 expressed as a decimal?
SashulF [63]

Answer:

7.8

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the probability you roll doubles on two 6 sides dice <br> please show work
Mars2501 [29]

Answer:

1/6

Step-by-step explanation:

We can start by determining all the different combinations we can get.

We are using 6 sided dices, so we have a chance of getting 6 different numbers for each dice.

If we only have 1 dice, the our possible values would be:

1, 2, 3, 4, 5, 6

However, we have 2 dices. As such, our combinations have been multiplied, and now our possibilities are:

(1 , 1) , (1 , 2) , (1 , 3) , (1 , 4) , (1 , 5) , (1 , 6) , (2 , 1) , (2 , 2) , (2 , 3) , (2 , 4) , (2 , 5) , (2 ,6), and so on for 3, 4, 5, and 6

We can find the number of combinations by simply multiplying the amount of possible values for each dice.

Since both dices have 6 possible values, we multiply 6 by 6, and the amount of possible combinations is 36.

Now, let's determine the possibility for getting a double.

First, let's determine how many doubles we can get:

(1 , 1) , (2 , 2) , (3 , 3) , (4 , 4) , (5 , 5) , (6 ,6)

There are 6 different combinations for rolling a double.

So, our probability of rolling a double on two 6 sided dices is 6 out of 36

We can simplify that to 1 out of 6.

So the probability of rolling a double on two 6 sided dices is 1/6

8 0
3 years ago
Other questions:
  • Simplify each expression. Use positive exponents.
    6·2 answers
  • Is the decimal form of 13/3 a rational number.
    7·2 answers
  • FInd each error and make the corrections
    8·1 answer
  • Need Help Please!!!!!!!!!!
    6·2 answers
  • What shapes are not 3D
    12·1 answer
  • A piece of cardboard measures 10 ft by 10 ft. Four equal squares of size x are removed from the corners. After removing the squa
    10·1 answer
  • Suzy makes 20 dollars an hour at her job. Bill only makes 10 dollars an hour but he has a starting bonus of 20. When will Suzy a
    12·1 answer
  • From: Sam To: You
    15·2 answers
  • Clara played a video game before she left the house to go on a walk. She started with 0 points, lost 6 points 3 times, won 4 poi
    10·1 answer
  • If you do 12 minutes of a 45 minute workout how many calories is it? (the 45 minutes is 1000 calories in total)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!