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zepelin [54]
3 years ago
11

I need help on A and B

Mathematics
1 answer:
MaRussiya [10]3 years ago
6 0
The average speed for the trip is calculated as the total distance covered ÷ total time taken
335 miles ÷ 6 hours = 55.833 mph
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ANSWER QUICK!! 75 PTS!!!
iogann1982 [59]

Answer:

2) x = -2 , y = 2

3) no solution exists

Step-by-step explanation:

Solve the following system:

{-2 x - 3 y = -2

y = 2 x + 6

Hint: | Perform a substitution.

Substitute y = 2 x + 6 into the first equation:

{-2 x - 3 (2 x + 6) = -2

y = 2 x + 6

Hint: | Expand the left hand side of the equation -2 x - 3 (2 x + 6) = -2.

-2 x - 3 (2 x + 6) = (-6 x - 18) - 2 x = -8 x - 18:

{-8 x - 18 = -2

y = 2 x + 6

Hint: | Choose an equation and a variable to solve for.

In the first equation, look to solve for x:

{-8 x - 18 = -2

y = 2 x + 6

Hint: | Isolate terms with x to the left hand side.

Add 18 to both sides:

{-8 x = 16

y = 2 x + 6

Hint: | Solve for x.

Divide both sides by -8:

{x = -2

y = 2 x + 6

Hint: | Perform a back substitution.

Substitute x = -2 into the second equation:

Answer: {x = -2 , y = 2

4 0
3 years ago
Which would NOT be an appropriate way to generate 10 random integers to use in one trial of a probability simulation?
Vlada [557]
A. Make a list of the first 10 integers that come to your head should NOT be used
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4 years ago
Read 2 more answers
What is the value of x?<br><br> Enter your answer in the box.<br><br> x =
gogolik [260]
Vertical angles are congruent, so their measures are equal.
Set the angle measures equal and solve for x.

2x + 2 = 3x - 52

-x = -54

x = 54

___________
|                      |
|        54         |
|__________|

The answer is inside a box.
3 0
3 years ago
PLEASE HELP AND FAST!!!
lesya692 [45]
The answer is the top one.
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I’m confused on this a little ..
Mrrafil [7]
You multiply all of the As by 7 and all of the Bs by 6 and then add all of the numbers
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