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Ann [662]
3 years ago
7

The opposite of 12 plus a number

Mathematics
1 answer:
dlinn [17]3 years ago
6 0

Im pretty sure the answer is Twelve :))

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Plz help asap with explanation and will get the brilliant
Elina [12.6K]
3x + y = -3
-2x + y = 7
Use elimination method
Subtract both equations
5x = -10, x = -2
Plug in -2 for x (any equation)
3(-2) + y = -3
-6 + y = -3
y = 3

Solution: x = -2, y = 3
Or as a coordinate: (-2, 3)
8 0
2 years ago
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a sprinter runs 400 meters in 54 seconds. What is the runner's average running rate in meter's per second?
charle [14.2K]
7.407407407407407... (it repeats the 407) 
U just had to divide 400 by 54

3 0
3 years ago
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Dimensional analysis. An adult mosquito's lifespan is about 16 days. How many minutes is that?
masya89 [10]

Answer:

23,040 minutes

Step-by-step explanation:

16 days = 384 hours = 23,040 minutes

4 0
3 years ago
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2(3/5x+3). How would I get that answer
Airida [17]

Answer: \frac{6}{5}x + 6

Step-by-step explanation:

       We will use the order of operations, also known as PEMDAS. See attached. Please note that we cannot do what is in the parentheses first because we have a variable, so we will distribute the 2 into it. Since this is an expression, I do not believe we can fully solve for x, but can only simplify.

       Given:

2(3/5x+3)

       Distribute:

2 * (3/5x) + (2 * 3)

6/5x + 6

       Answer:

\frac{6}{5}x + 6

5 0
2 years ago
PLEASE HELP!!!!!! ILL GIVE BRAINLIEST *EXTRA 40 POINTS** !! DONT SKIP :((
Rom4ik [11]
X= -10
Y=7
Y=1/5X+9
Y=1/5 •(-10)+9
Y= -10/5 + 9
Y= -2+9
7=7

Y= -1/2 • (-10) +2
Y= 10/2 +2
Y=5+2
7=7

Yes
4 0
2 years ago
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