All categories

3 years ago

Solve for w 5w + 9z = 2z + 3w

Mathematics

2 answers:

Mazyrski [523]3 years ago

4 0

$5w + 9z = 2z + 3w \\ 5w - 3w = 2z - 9z \\ 2w = - 7z \\ w = \frac{ - 7z}{2}$
The answer is w = -7z/2

Aleonysh [2.5K]3 years ago

4 0

Answer:

$w=\frac{-7z}{2}$

Step-by-step explanation:

$5w + 9z = 2z + 3w$

Solve the given equation for 'w'

$5w + 9z = 2z + 3w$

Move 3w to the left hand side. Subtract 3w on both sides

$2w + 9z = 2z$

Now subtract 9z on both sides

$2w=-7z$

Now divide both sides by 2

$w=\frac{-7z}{2}$

You might be interested in

Write an equation in slope-intercept form for the line with slope -6 and y-intercept 5

algol [13]

Answer:

y=-6+5

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

James has $7.60 in nickels and quarters. He has 4 fewer nickels than quarters. How many of each coin does he have?

Rainbow [258]

26 quarters, 22 nickels

4 0

2 years ago

Suppose y varies directly with x. Write a direct variation equation that relates x and y.

timama [110]

$\huge\mathfrak\purple{Answer:-}$

★ Option (A) y = -5x is the right answer.

<h3>I hope this helps! :)</h3>

8 0

3 years ago

It is a well-known fact that 50% of the general population are rascals (P(R) = 0.5) and 50% of the general population are not ra

aleksley [76]

Answer:

The answer is D. 0.75

Step-by-step explanation:

Let call R the event that a person is rascal, RC a person is not rascal, TH a person use top hat and NTH a person don’t use top hat.

From the information on the question we have 4 options with their respective probability:

1. A person could be rascal and use top Hat: this probability is calculate as the multiplication of the probability of be a rascal (0.5) and use a top hat (0.9), then:

P(R y TH)=0.5*0.9=0.45

2. A person could be rascal and don’t use top Hat: this probability is calculate as the multiplication of the probability of be a rascal (0.5) and not use a top hat (0.9), then:

P(R y NTH)=0.5*0.1=0.05

3. A person could be not rascal and use top Hat: this probability is calculate as the multiplication of the probability of not be a rascal (0.5) and use a top hat (0.3), then:

P(RC y TH)=0.5*0.3=0.15

4. A person could be not rascal and not use top Hat: this probability is calculate as the multiplication of the probability of not be a rascal (0.5) and not use a top hat (0.7), then:

P(RC y NTH)=0.5*0.7=0.35

Then the probability that a person is a rascal given that he is wearing a top hat could be written and calculate as:

$P(R/TH)=\frac{P(R y TH)}{P(TH)}$

For calculate P(TH) we need to sum all the option in which TH is involve so:

P(TH) = P(R y TH)+ P(RC y TH)

P(TH)=0.45+0.15=0.6

Replacing values on the first equation we get:

$P(R/TH)=\frac{0.45}{0.6} =0.75$

So, the probability that a person is a rascal given that he is wearing a top hat is 0.75

5 0

3 years ago

What is the domain and range of each function graohed below?

andriy [413]

Domain is the x values you can use
range is the y values

a.
the domain
hmm, seems to be all real numbers except for at x=0, it gets really close tho
so D=(-∞,0)U(0,∞)

range is all real numbers except for y=0, it gets really close tho
R=(-∞,0)U(0,∞)

b.
domain
that empty circle means something like < or >
goes from 5 to 6, not including 5
so domain is D=(5,6]

range is from -4 to 2, not including -4
range is R=(-4,2]

5 0

3 years ago

Read 2 more answers