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2 years ago

Find the solution to the system of equations by substitution. 2x - 2y = - 6 y= 2x

Mathematics

1 answer:

dusya [7]2 years ago

7 0

Answer:

x = -2

y = 2

Step-by-step explanation:

Take the value of x from the first equation: x = 2 − 2 y ( 1 ) , and substitute for x into the second: y = 2 ( 2 − 2 y ) + 6 solve for y ; y = 4 − 4 y + 6 y = 10 5 = 2 Substitute back into ( 1 ) and find x : x = 2 − 4 = − 2

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A chef planning for a large banquet thinks that 2 out of every 5 dinner guests will order soup. 800 guests are going to be at th

Xelga [282]

Answer:

The Chef will prepare 320 soups for a large banquet

Step-by-step explanation:

chef thinks that 2 out of every 5 dinner guests will order soup

===> Order soup / total number of attender

= 2/5

Total guest = 800 ==> 4 people ordered soup is

2 /5 = x /800

cross multiplying

x = 2 x 800 / 5

= 320

The Chef will prepare 320 soups for a large banquet

8 0

3 years ago

The interarrival time of nuclear particles in a Monte Carlo simulation of a reaction is designed to have a uniform distribution

jekas [21]

Answer:

Incomplete question, but you can use the formulas given to solve it.

Step-by-step explanation:

Uniform probability distribution:

An uniform distribution has two bounds, a and b.

The probability of finding a value of at lower than x is:

$P(X < x) = \frac{x - a}{b - a}$

The probability of finding a value between c and d is:

$P(c \leq X \leq d) = \frac{d - c}{b - a}$

The probability of finding a value above x is:

$P(X > x) = \frac{b - x}{b - a}$

Uniform distribution over an interval from 0 to 0.5 milliseconds

This means that $a = 0, b = 0.5$

Determine the probability that the interarrival time between two particles will be:

Considering $a = 0, b = 0.5$ , and the question asked, you choose one of the three formulas above.

7 0

3 years ago

What is the y-intercept of y=4x?

Vera_Pavlovna [14]

Answer:

y intercept= 0

Step-by-step explanation:

in the formula y=mx+b, m is the slope and b is the y intercept. here we are not given "b" so the y intercept it 0

3 0

3 years ago

Solve for y in the following equation. x+2y=z

Galina-37 [17]

Answer:

The Answer:

Step-by-step explanation:

x+2y=z

minus x both sides

2y=z-x

divide by 2 both sides

The Answer:

$y = \frac{z - x}{2}$

6 0

3 years ago

Blake is signing a lease for a studio apartment that rents for $425/month. How much will Blake pay to move in if he must pay the

jeka57 [31]

Answer:

Step-by-step explanation:

The total of the rental and security deposits amounts to two and a half months' rent:

2.5 × $425 = 1062.50

It will cost Blake $1062.50 to move in.

8 0

2 years ago