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4vir4ik [10]
3 years ago
9

What is −5x+4y=3 x=2y−15 ​

Mathematics
2 answers:
jeka57 [31]3 years ago
7 0

Answer:

x=9

y=12

Step-by-step explanation:

you know what the value of x is in terms of the second equation

so put that value into the first equation

so

-5(2y-15) + 4y = 3

-10y + 75 + 4y = 3

-6y + 75 = 3

-6y = -72

y = 12 (now we have the actual value of y, just substitute this into any of the first two original functions)

x = 2(12) - 15

x = 24 - 15

x = 9

Ber [7]3 years ago
3 0

Answer:

x = 9

y = 12

Step-by-step explanation:

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According to 2017 Belgium Labor data information: Adult Population in 2017= 4500, Number of employed in 2017= 2800, and Number o
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The labor-force participation rate of Belgium in 2017 was 77.78%

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Given:

Adult population = 4500

Number of employed in 2017 = <em>2800</em>

Number of Unemployed in 2017 = 700

Labor force participation rate = (employed + unemployed) / total population × 100

= (2800 + 700) / 4,500 × 100

= 3,500 / 4500 × 100

= 0.777777777777777 × 100

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Approximately, 77.78%

2.

Given:

Adult Population in 2016 = 3500

Number of employed in 2016 = 1800

Number of Unemployed in 2016= 600

Unemployment rate = unemployed population/ total labor force × 100

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Approximately,

17.14 %

Therefore, the unemployment rate of Japan in 2016 was 17.14%

Learn more about unemployment rate:

brainly.com/question/13280244

5 0
2 years ago
Runners participating in a charity event will run 2.1 km from the starting point to a water station and then run 1.75 km to the
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b

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6 0
4 years ago
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Solve n^4-11n^2+30÷n^4-7n^2+10
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Factor the numerator and denominator...

(n^4-5n^2-6n^2+30)/(n^4-2n^2-5n^2+10)

[n^2(n^2-5)-6(n^2-5)]/[n^2(n^2-2)-5(n^2-2)]

[(n^2-5)(n^2-6)]/[(n^2-5)(n^2-2)]  notice the (n^2-5)s cancel out

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We could further factor this because each is a difference of squares to:

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Anastaziya [24]

Answer:

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1/10 chance

2.

2/10 chance

3.

2/10 chance

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0/12 chance or maybe 0/10

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