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madam [21]
3 years ago
14

What is the result of multiplying the second equation by 2 and adding to the first equation?

Mathematics
2 answers:
UkoKoshka [18]3 years ago
8 0

Answer:

5x + 3y = 6

Step-by-step explanation:

vladimir1956 [14]3 years ago
3 0

Answer:

5x + y = 8

Step-by-step explanation:

Given the equations:

x+3y=10 ____ (1)

2x−y=−1 ____ (2)

Multiply (2) by 2

2(2x - y = - 1) = 4x - 2y = - 2

4x - 2y = - 2 - - - (3)

Add (1) and (3)

4x - 2y = - 2

x + 3y = 10

___________

5x + y = 8

_________

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Ganezh [65]
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Because 3162.50 divided by 2750 is 1.15
1.15 x 100 is 115%
115-100 = 15% increase
7 0
3 years ago
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What is the distance of 1.5 to -2 on a number line and how can you show it
user100 [1]

Answer:

The distance is 3.5

Step-by-step explanation:

5 0
3 years ago
You and a friend are playing a best-of-three series (first to win 2 games wins the series). You are a stronger player and have a
mariarad [96]

Answer and Step-by-step explanation:

Given that probability of you winning each game = 0.68

And probability of you winning next game = 0.81

Your friend's chance of winning/you losing would be = 1-0.68= 0.32

also his chance of winning next game = 0.73

To find probability that you would win the series given that you need to win two games to win the series

= probability that you win first game and second game+ probability that you win first game, lose second game and win third game + probability that you lose first game, win second game and win third game

= 0.68*0.81+0.68*0.32*0.68+0.32*0.68*0.81

=0.8750

Therefore probability that you would win the series = 0.8750

Note: here we found the probability of winning by adding(or) up the three possible combinations that would result in a win

6 0
3 years ago
Solving Systems Using Inverses
Zanzabum

Answer:

12x the second -12x -16

Step-by-step explanation:

Solving systems of equations with 3 variables is very similar

7 0
2 years ago
a force of 50 pounds stretches a spring 4 inches. how much force is required to stretch the spring 10 inches?
-BARSIC- [3]

Answer:

125 pounds

50/4 = 12.5 pounds stretches a spring to 1 inch

12.5x10=125 pounds of force

3 0
2 years ago
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