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VashaNatasha [74]
3 years ago
12

Twice a number minus a second number is -1. Twice the second number added to three times the first number is 9

Mathematics
1 answer:
ANTONII [103]3 years ago
5 0

Answer:

The numbers are: 1 and 3.

Step-by-step explanation:

Let the first number be $ x $ and the second number be $ y $.

Given: The difference between twice the number and the second number is $ -1 $. writing this mathematically,

$ 2x - y = -1 $

From the second statement we get:

$ 2y + 3x = 9 $

Solving for $ x$ and $ y$ we get:

$ x = 1 $

and $ y = 3 $

Thus the first number is 1 and the second number is 3.

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3 years ago
What’s the area and the circumference of a circle with diameter 8m?
MatroZZZ [7]

Answer:

50.24

Step-by-step explanation:

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8 0
2 years ago
8 (3f - g) when f = 9 and g = -3​
Neko [114]

Step-by-step explanation:

  • 8(3f-g)

when f=9, g=-3, then

  • 8(3×9-(-3))
  • 8(27+3)
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3 0
2 years ago
the odds in favor of frank mckinnis winning a hot dog eating contest are 2:9the odds in favor of frank mckinnis winning a hot do
Ivahew [28]

Answer:

Consider the complete question is,

'The odds in favor of frank McKinney winning a hot dog eating contest are 2:9,

  • Determine the probability that Frank will win the contest,
  • Determine the probability that Frank will not win the contest'

Solution :

We know that,

Odds in favor : the ratio of the number of ways that an outcome can occur compared to how many ways it cannot occur.

We have,

\frac{\text{Number of ways of winning the contest}}{\text{Number of ways of not wining the contest}}=\frac{2}{9}

So, total outcomes = 2 + 9 = 11,

\text{Probability}=\frac{\text{Favourable outcomes}}{\text{Total outcomes}}

Thus, the probability that Frank will win the contest = \frac{2}{11}

And,

The probability that Frank will win the contest = \frac{9}{11}

5 0
3 years ago
Read 2 more answers
What is the value of y
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The answer is B. 55 degress
3 0
3 years ago
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