All categories

2 years ago

Find x, y, z, so that 41, 46, x, y, z has a mean of 50 and a mode of 45

Mathematics

2 answers:

nevsk [136]2 years ago

5 0

Answer:

Step-by-step explanation:

as mode is 45 ,two of three is 45

i assume x =y=45

now (41+46+45+45+z)/5=50

177+z=50×5=250

z=250-177=73

so x=45

y=45

z=73

Grace [21]2 years ago

5 0

Answer: x = 45, y = 45 and z = 73

Step-by-step explanation:

If mode = 45, it means 45 has appeared in the data set more than once

Data set is therefore written as 41, 46, 45, 45 and z; where x = 45 and y = 45

Now that we know x and y, find z.

To find z, if mean of the data set is 50, then it can be written as:

50 = 41 +46 +45 +45 + z/5

Cross multiply to get

50×5 = 177 +z

250 = 177 + z

z = 250 - 177

z= 73

I hope this is clear, please mark as brainliest

You might be interested in

A- y= -3/2x+8<br> B- y=3/2x+5<br> C- y=2/3x+8<br> D- y=-2/3x+5

Annette [7]

Answer:

I think the right answer is B.

4 0

3 years ago

Hello, can someone help me with these ones pls? I need it ASAP Find the slope of the line in each figure. If the slope of the li

sp2606 [1]

Answer:

slope: -3

equation: y = -3x

Step-by-step explanation:

the slope is "the amount of change in the y direction when you take one step to the right".

In the first graph you can see that (0,0) and (1,-3) are on the graph. So when you step from x=0 to x=1, the graph moves 3 units down. Hence the slope is -3. The minus sign means down.

Sometimes it is difficult to see the change in the y direction when only taking 1 step to the right. That's no problem, if you take e.g., 4 steps to the right, you have to divide the y change that you found by 4.

Written in a formula it is dy/dx, a.k.a: the y change divided by the x change.

So that takes care of the slope.

In a general formula for a line y = ax + b, the slope is the letter a.

b is used to move the graph up and down. The first graph moves through (0,0) so no b needed, hence the equation y = -3x.

If b would be, say, 5, the graph would be lifted up by 5. In fact, the point (0,b) will be the point where the graph crosses the y-axis. So you find b by finding the intersection with the y axis. x must be 0 at this point.

With this approach you can solve all assignments easily.

6 0

3 years ago

Help please!!!!! Will give brainliest!!!!

Harlamova29_29 [7]

Answer:

someone has type A blood 40%

Step-by-step explanation:

The probability that a certain person has the A-type blood is 40%, or 0.4

8 0

3 years ago

The population in the trapezoid-shaped region shown is about 3000 people. How many people are there per square mile?

Anastasy [175]

Answer: $\frac{3,000}{A}$

Step-by-step explanation:

<h3> Since the figure is not attached, below you can see a general explanation of the procedure to solve the exercise: </h3>

For this exercise you can apply the following formula, which is used to calculate the area of a trapezoid:

$A=\frac{h(B+b) }{2}$

Where "B" and "b" are the bases of the trapezoid and "h" is the height.

So, substituting values into the formula and evaluating, you can find the area of trapezoid-shaped region.

Since the population in the trapezoid-shaped region is about 3,000 people, you can find the number of people per square mile dividing the population by the area of the region.

Then, the following expression represents the number of people per square mile in that region:

$\frac{3,000}{A}$

7 0

3 years ago

Read 2 more answers

Please Explain This Function out for me :) <br> f(s) =10 (s-65)+75

netineya [11]

<span>most of the time it saids that s= a number.</span>

4 0

3 years ago

Read 2 more answers