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3 years ago

11

7n-4=31 So what does n represent?

1 answer:

Lorico [155]3 years ago

6 0

Answer:

n=5

Step-by-step explanation:

7n-4 = 31

+4 +4

7n = 35

/7 /7

n=5

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Find the x and y intercepts 5y + 3x = 15

Tomtit [17]

First, find the x-intercept.

The x-intercept will be at the point (x, 0) where x is any real number. If we substitute the x-coordinate and the y-coordinate for the x and y variables in the equation, we can solve for x.

5y + 3x = 15
5(0) + 3x = 15
3x + 15
x = 5

We found the x-intercept now find the y-intercept with the same process.

The y-intercept will be at the point (0, y) where y is any real number.

5y + 3x = 15
5y + 3(0) = 15
5y = 15
y = 3

So, the x-intercept is (5, 0) and the y-intercept is (0, 3)

8 0

3 years ago

Please help I need this ASAP!

yanalaym [24]

Answer:

nope

Step-by-step explanation:

3 0

3 years ago

Three ratios that are Equivalent to 11:1

marin [14]

Answer:

1-22:2

2-33:3

3-44:4

Step-by-step explanation:

11+11=22

22+11=33

33+11=44

1+1=2

2+1=3

3+1=4

so, 22:2

33:3

44:4

6 0

3 years ago

Help answer if u know

Setler [38]

Answer:

b = 6 / 1/4

Step-by-step explanation:

C)

7 0

3 years ago

Read 2 more answers

Fill in the missing information. Tim Worker is doing his budget. He discovers that the average miscellaneous expense is $45.00 w

nlexa [21]

Answer:

$P(38.6$

And we can assume a normal distribution and then we can solve the problem with the z score formula given by:

$z=\frac{X -\mu}{\sigma}$

And replacing we got:

$z=\frac{38.6- 45}{16}= -0.4$

$z=\frac{57.8- 45}{16}= 0.8$

We can find the probability of interest using the normal standard table and with the following difference:

$P(-0.4$

Step-by-step explanation:

Let X the random variable who represent the expense and we assume the following parameters:

$\mu = 45, \sigma 16$

And for this case we want to find the percent of his expense between 38.6 and 57.8 so we want this probability:

$P(38.6$

And we can assume a normal distribution and then we can solve the problem with the z score formula given by:

$z=\frac{X -\mu}{\sigma}$

And replacing we got:

$z=\frac{38.6- 45}{16}= -0.4$

$z=\frac{57.8- 45}{16}= 0.8$

We can find the probability of interest using the normal standard table and with the following difference:

$P(-0.4$

6 0

3 years ago