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3 years ago

Which relationship is described by the equation y=5x

Mathematics

1 answer:

tatyana61 [14]3 years ago

7 0

Answer:

Direct Variation / Proportinal

Step-by-step explanation:

A general form for a direct variation equation is:

$y=kx$

'k' is the constant of proportionality.

We can see that the equation given is in that general form, where 5 is the constant or proportionality, or the slope.

Hope this helps.

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Write and graph an equation in two variables that shows the relationship between the time t and the distance d traveled Moves 2

tiny-mole [99]

Answer:

the distance equation is

$d=\frac{2}{3}\times t$

Step-by-step explanation:

Let's assume

time in hours as 't'

distance traveled as 'd' meters

We are given

Moves 2 meters every 3 hours

So, firstly we find speed

$speed=\frac{2}{3}$

$k=\frac{2}{3}$

we know that

distance = (speed)*(time)

now, we can plug values

$d=k\times t$

now, we can plug value

$d=\frac{2}{3}\times t$

So, the distance equation is

$d=\frac{2}{3}\times t$

Graph:

6 0

3 years ago

What is the integer closest to zero?

ANEK [815]

Answer:

The answer is 25

Step-by-step explanation:

What I would is to first divide 78 by 3. That will get you 26. Then add one to get 27, subtract one to get 25. 25+26+27=78

The answer is 25.

8 0

4 years ago

Read 2 more answers

Need help! 20 points! No links please

denis-greek [22]

Answer:

480 in3

Step-by-step explanation:

So the first thing I looked at was how to find the volume of a 3-dimensional square. Why do we have to do this? Well, we can see that the shape is made up of 3 different types of 3-dimensional cubes so to find the answer all we have to do is figure out the volume for each separate cube and add them all together.

So, to find the volume of a cube we have to multiply the area (length x width) by the height of each cube.

Let's start with the largest cube so we would multiply 5 x 12 x 4 which equals v = 240

Now let us do the second to largest by multiplying 8 x 5 x 4 = which equals v = 160

Finally, on to the smallest cube, 4 x 4 x 5 =

v = 80

So now if we add 240 + 160 + 80 that will give us 480

So the answer is 480 in3

Hope this is correct I was a little confused while I was figuring it out :0 Sorry if it is wrong :(

6 0

3 years ago

A research company desires to know the mean consumption of meat per week among people over age 23. A sample of 164 people over a

Elan Coil [88]

Answer:

The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.8}{2} = 0.1$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.1 = 0.9$ , so $z = 1.28$

Now, find M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.28*\frac{0.7}{\sqrt{164}} = 0.07$

The lower end of the interval is the mean subtracted by M. So it is 4.1 - 0.07 = 4.03 pounds

The upper end of the interval is the mean added to M. So it is 4.1 + 0.07 = 4.17 pounds

Rounded to one decimal place

The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.

8 0

3 years ago

4/7 of 29= (estimate each product)

Naddika [18.5K]

Answer:

16.6 for nearest tenths

16.57 for nearest hundreths

Step-by-step explanation:

4/7*29/1=

29*7=203/7 to get the same denominator

203 x 4 = 812 mulptiply to get the fraction

7 x 7 = 49

812/49=16.5714285714

5 0

3 years ago