MATHEMATICS MIDDLE SCHOOL

A set of data already has the values 11, 14, 23, and 16. What value would have to be added to the set for the mean of thefive numbers to be 18?
8
12
18
26

Answers

Answer 1
Answer:

Answer: 26

Step-by-step explanation:

Mean = total sum of data set / frequency of data set
Answer 2
Answer:

Answer:

I'm sure the answer is 26

Step-by-step explanation:

(11+14+23+16+x) / 5 = 18->64+x = 90->x = 26

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Daltons dad rode his bike 1 kilometer north,1 kilometer west, 1 kilometer south and 2 kilometers east. How many total kilometers will Daltons dad ride if he follows this path 9 times?

Answers

1+1+1+2=5
5x9=45
Therefore the total number of km is 45.

Answer:

45

Step-by-step explanation:

The combined age of three relatives is 120 years. James is three times the age of Dan, and Paul is two times the sum of James and Dan. How old is each relative

Answers

The ages of each relative are 30, 10 and 80 years respectively.

  • Let James' age be J.
  • Let Dan's age be D.
  • Let Paul's age be P.

Translating the word problem into an algebraic expression, we have;

J + D + P = 120 ......equation 1

J = 3D          .......equation 2

P = 2(J + D)   ......equation 3

Substituting eqn 2 and 3 into eqn 1, we have;

3D + D + 2J + 2D = 120\n\n6D + 2(3D) = 120\n\n6D + 6D = 120\n\n12D = 120\n\nD = (120)/(12)

Dan, D = 10 years

For James;

J = 3(10)

James, J = 30 years.

For Paul;

P = 2(J + D)

P = 2(30 + 10)\n\nP = 2(40)

Paul, P = 80 years.

Therefore, the ages of each relative are 30, 10 and 80 years respectively.

Read more: brainly.com/question/6463206

Answer: Your answer is 60

Step-by-step explanation:

I got to do number 8

Answers

      2x-4=5* u need at least 20 characters

at a warehouse the employees can unload 18 trucks in 6 hours what is the unit rate for unloading trucks

Answers

18 trucks/ 6 hours

divide top and bottom by 6

3 trucks/ hour

The unit rate is 3 trucks per hour

The answer is 3 trucks per hour.

18 / 6 = 3

Hope this helps you!

Can someone help me?

Answers

a=-112 bcs -216 ft is down from sea level and -104 is also down from sea level bcs both values are in minus but -104 is higher than other so you can minus it from -216 the difference is the answer
b=-109

A line has a slop of 2 and passes through the point -12,8

Answers

The function of the line would be best represented by y=mx+b where m = slope and b = y intercept.
To find this we can put it into the slope-intercept form of y-y1=m(x-x1)

Which is:
y-8=2(x+12)
y=2x+24+8
y=2x+32
Hope that helps!
y=mx+b
m=slope
b=y intercept

slope=2
y=2x+b
solve for b by inputing
(-12,8)
(x,y)
x=-12 and y=8 is one solution
input -12 for x and 8 for y

8=2(-12)+b
8=-24+b
add 24 to both sides
32=b

y=2x+32
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