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gladu [14]
2 years ago
15

Find the values of the variables.

Mathematics
1 answer:
iris [78.8K]2 years ago
3 0

Answer:

x=-1/2

Step-by-step explanation:

2x+2=4x+3

-1=2x

x=-1/2

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The sum of two numbers is 70. one number is 4 times as large as the other. What are the numbers?
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One number is 4 times the other, so x and 4x.

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3 years ago
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(Set up and solve the system, then answer the associated question)
Dimas [21]

9514 1404 393

Answer:

  • red division: 6 teams
  • blue division: 5 teams

Step-by-step explanation:

We can let r and b represent the numbers of teams in the red and blue divisions, respectively. The total number of goals scored in each division will be the average for that division times the number of teams in that division.

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  4.5r +4.2b = 48 . . . . . . total goals scored per week

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Solving by substitution, we have ...

  r = b +1

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  8.7b +4.5 = 48 . . . . . . . . simplify

  8.7b = 43.5 . . . . . . . . . . subtract 4.5

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<em>Additional comment</em>

The basic idea is that you make an equation for each relation given in the problem statement. For a problem like this, you do need to have an understanding of how the average number of goals would be calculated and how that relates to the total goals.

8 0
2 years ago
at a conference of 250 people, 30% of the participants are french, 35% are americans, 20% are germans, and the rest are of the o
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5 0
3 years ago
Guided Practice
KATRIN_1 [288]

Answer:

i would think its C

Step-by-step explanation:

the other options dont make sense lol

hope this is correct and helps :)

5 0
3 years ago
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