1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yanalaym [24]
2 years ago
5

Choose the set of numbers with an average of 8.

Mathematics
2 answers:
Anastaziya [24]2 years ago
5 0
The correct answer is B

To find the average we add all the given numbers together then divide by how many numbers there are.

A is 7

B is 8

C is 9
Lana71 [14]2 years ago
5 0

Answer:

B

Step-by-step explanation:

A) (3+5+7+8+12)/5 = 35/5 = 7 => Incorrect

B) (2+3+6+13+16)/5 = 40/5 = 8 => Correct

C) (2+4+8+11+20)/5 = 45/5 = 9 => Incorrect

You might be interested in
How do you write 9,800,100 in expanded form using exponents?
NikAS [45]
<span>(100 cubed x 9) + (100 squared x 8) + 10 squared = 9,800,100 </span>
7 0
3 years ago
PLZ HELP ASAP IM STRUGGLING AND TIMED THX<br><br> FIND THE AREA
erastova [34]

Answer:

The answer is B

Step-by-step explanation:

I found the area of the triangle by multiplying the length of line \ DF I found using a pythagorean theorem calculator I found online by the length of line \ DG and divided it by 2 to get about 34 squared units.

7 0
2 years ago
one tamk of gasoline has an octane rating of 140 and another tank of gasoline has an octane rating of 80. To obtain a mixture of
Zarrin [17]

Answer:

20 gallons were used from the tank with the octane rating of 80.

Step-by-step explanation:

Given : One tank of gasoline has an octane rating of 140 and another tank of gasoline has an octane rating of 80. To obtain a mixture of 60 gallons with an octane rating of 120.

To find : How many gallons should be used from the tank with the octane rating of 80?

Solution : Let x be the volume of gas whose octane rating is 140 and

y be the volume of gas whose octane rating is 80.

Then, we form the equation as:

(1) x\times140 + y\times80 = 60\times120

140x+80y = 7200

or  7x+4y = 360 .........[3]

(2) x + y = 60

Now multiply equation (2) by 4  

4x + 4y = 240 ...........[4]

Subtract (4) from (3)  

7x+4y-4x-4y=360-240

3x=120

x=\frac{120}{3}

x=40

Put x in equation [4] we get,

4(40) + 4y = 240

160 + 4y = 240

4y = 80

y=\frac{80}{4}

y=20

Therefore, x=40 and y=20

So, 20 gallons were used from the tank with the octane rating of 80.






7 0
3 years ago
If you toss a coin 4 times, what is the probability of landing heads, heads, tails, heads and then heads?
storchak [24]
50 percent chance for either one
7 0
3 years ago
Read 2 more answers
X y
Darina [25.2K]

Answer:

Part 1) The rate of change is \frac{17}{15}

Part 2) The initial value is 68

Part 3) The function rule to the linear model is y=\frac{17}{15}x+68

Step-by-step explanation:

we know that

The linear equation in slope intercept form is equal to

y=mx+b

where

m is the slope or unit rate

b is the y-intercept or initial value

step 1

Find the slope

take two points from the table

(0,68) and (15,85)

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

substitute the values

m=\frac{85-68}{15-0}

m=\frac{17}{15}

In a linear function , the slope is the same that the rate of change

therefore

The rate of change is \frac{17}{15}

step 2

Find the y-intercept

we know that

The y-intercept is the value of y when the value of x is equal to zero

Looking at the table

For x=0, y=68

therefore

The y-intercept is

b=68

The y-intercept is also called the initial value

therefore

The initial value is 68

step 3

Determine the function rule to the linear model

y=mx+b

we have

m=\frac{17}{15}

b=68

substitute

y=\frac{17}{15}x+68

8 0
3 years ago
Other questions:
  • What is the volume of a sphere that has a 10 m diameter
    11·1 answer
  • Simplify the expression
    15·1 answer
  • Solve log3(x+1)=log6(5-x) by graphing. what equations should be graphed​
    14·2 answers
  • Find the value of 18 ÷ 9 ∙ 3
    6·2 answers
  • How does the position of the decimal changes in a quotient as you divied by 10 100 1000
    8·1 answer
  • Brian is 6 feet tall and cast a 12 foot shadow. At the same time, Shirley casts a 9 foot shadow. How tall is shirley?
    7·1 answer
  • Write the equation in slope-intercept form for a line which points go through (-2,3), parallel to x=o
    15·1 answer
  • What is the scale factor in the dilation?<br>PLEASE HURRY!!!​
    5·1 answer
  • 1) What does the term 5p mean in the expression 5p - 10?
    7·1 answer
  • Is every ray part of an angle, not including straight angles?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!