John ran the 200 meter dash and clocked the following times: 24.4, 27.2, 30.6, 24.1, 29.9, and 27.0. What was John's average time on the race?

Answers

Answer 1

Answer: 27.2

Step-by-step explanation: add up the values then divide by the amount of values (6)


Related Questions

16x³-128y³
pls answer fast​

Answers

Answer:

16x³-128y³

2((2x)³-(4y)³)

2(2x-4y)(4x²+8xy+16y²)

2×2×4(x-2y)(x²+2xy+4y²)

16(x-2y)(x²+2xy+4y²)

is your answer in factor form.

The required factor is given by 16(x-2y)(x²+2xy+4y²)

What is factor?

factors can be defined as the the numbers that multiply to give that number.

Factorization
It follow the
a^3-b^3 = (a-b)(a^2+ab+b^2)


[tex]16x^3-128y^3\\16(x^3-(2y)^3)\\16(x-2y)(x^2+2xy+4y^2)[/tex]

Thus the required  factor is given by 16(x-2y)(x²+2xy+4y²).

Learn more about factors here:
https://brainly.com/question/24182713

#SPJ2

There are two laundry trucks One laundry truck visits Roxanne's house every 3 days and another laundry truck visits her neighborhood every 4 days. When will both the trucks next visit on the same day ?

Answers

Answer:

Evey 12 days  both  of the trucks visit on the same day

Step-by-step explanation:

The LCM of 3 and 4 is 12, because 12 is the smallest number that 3 and 4 are both factors for.

Gabrielle's age is three times Mikhail's age. The sum of their ages is 80. What is Mikhail's age?

Answers

Answer:

Mikhail is 20 years old

Step-by-step explanation:

80 = Mikhail + Gabrielle

Gabrielle is 60 years old

Mikhail is 20 years old

20 * 3 = 60

20 + 60 = 80

Help !!!!!!!!! !!!!!!!!!!!!

Answers

Answer:

28

Step-by-step explanation:

Add up the angles of the ones given so

40 + 112 = 152 and then subtract by 180 to get the missing angle: 180 - 152 = 28

I hope this helped!

Answer:

28°

Step-by-step explanation:

40° + 112 ° + angleCBA =180

152°+ angleCBA= 180

angle CBA=180° - 152°

angle CBA= 28°

solve the system of equations x-y=-14 and 5x+7y=-10 by combining the equations.

Answers

Answer:

x+y=-4

Step-by-step explanation:

you need to solve this using elimination!

add both equations to each other:

x-y=-14

5x+7y=-10

the answer would be

6x+6y=-24

to go further,

it would be....

x+y=-4

because you can divide both sides by 6

hope this helped <33333

Solve for x: help me

Answers

Answer:

[tex]8x - 4 = 60 \\ 8x = 64 \\ x = 8[/tex]

Answer:

8

Step-by-step explanation:

8x-4=60

An interior designer made a scale model of a room. Each 1 inch in the model represented 12 feet in the actual 1 room. If the length of a hall was 2 inches in the model, what was the actual length of the hall?

Answers

Answer:

Step-by-step explanation:

Jxjcjja

The cost of 15 kg of apples is $262.50. Find the cost of 25 kg of apples

Answers

Answer:

525.00

Step-by-step explanation:

The cost of 25 kg of apples is $437.5.

What do we mean by cost ?

"A cost is an expenditure required to produce or sell a product or get an asset ready for normal use. In other words, it’s the amount paid to manufacture a product, purchase inventory, sell merchandise, or get equipment ready to use in a business process.

There are many different costs, including fixed and variable, but they are all accounted for in the same way. Costs are recorded as expenses on the income statement during and accounting period and cleared out in a closing entry at the end of the period."

The cost of 15 kg is $262.50.

So, the cost of 1 apple is 262.50/15

= 17.5

Cost of 25 kg = [tex]17.5 * 25 = 437.5[/tex]

Hence, the cost of 25 kg of apples = 437.5

To know more about cost here

https://brainly.com/question/15135554

#SPJ3

Leigh-Mari walks 10 kilometres to a waterfall at an
average speed of 3 kilometres per hour.
(a) Write down, in terms of r, the time taken in hours.
(b) Leigh-Mari returns from the waterfall but this time she
walks the 10 kilometres at an average speed of (x+1)
kilometres per hour. The time of the return journey is
30 minutes less than the time of the first journey. Write
an equation in x and show that it simplifies to
2 + 1 - 20 = 0.
(c) Solve the equation x2 + - 20 = 0.
(d) Find the time Leigh-Mari takes to walk to the waterfall,​

Answers

Answer:

immma send you the link friend me on hereStep-by-step explanation:

In ΔXYZ, ∠Y=90° and ∠X=40°. ∠ZWY=51° and XW=600. Find the length of ZY to the nearest integer.

Answers

The image of the triangle is missing so i have attached it.

Answer:

ZY ≈ 391

Step-by-step explanation:

From the attached image, ∠WZY = 180 - (51 + 90) = 39°. Because ΔWYZ is a right angle triangle and sum of angle in a triangle = 180°

Now, similarly ∠XZY = 180 - (40 + 90) = 50°

Using sine rule, we can find WZ;

WZ/sin 40 = XW/sin 50

We are given XW = 600

Thus;

WZ = (600 × sin 40)/sin 50

WZ = 503.5

Now, ZY can be found using trigonometric ratios;

ZY/WZ = sin 51°

Thus;

ZY = 503.5 × sin 51

ZY ≈ 391

If Amy has 5 apples and she eats 3 how many does she have left?

Answers

Answer:

2 apples.

Step-by-step explanation:

Answer:

She has 2 more apples left!

Step-by-step explanation:

Simple: this is the equation: 5 - 3 = 2!

It’s a multiple choice so it’s like 3 answers but help please

Answers

Answer:

b g and e

Step-by-step explanation:

True or false
You always have to use x and y as your variables when writing
equations for word problems.

Answers

Answer:

false

Step-by-step explanation:

you can use whatever letters you want to represent things. x and y make sense that you would use just them for graphing, but if it is a word problem you could have like c for cost or t for time or something

I need help with a and b ASAP

Answers

Answer:

A is (-3,0) and (1,0).

B is (-1, -2).

Step-by-step explanation:

To find the x-intercepts, look along the x-axis and where the line goes through it. Those two locations are your answer.

To find the vertex, you can find the axis of symmetry by taking its equation and putting it into the form of x = -b/2a or finding the lowest or highest point in the line. In this example, it is (-1, -2) as the lowest point, and there is not a highest point to find, since it is in a u-shape.

The following frequency table shows the observed high temperatures in Buffalo, New York, in May 2007.

Which interval contains the median temperature?
A.)50 - 59
B.)60 - 69
C.)70 - 79
D.)80 - 89

Answers

B)60-69

I guess option B is correct as it's frequency is higher

Answer:

answer is B. 60-69

Step-by-step explanation:

because I said so?

choose all the equations for which X = 1/2 is a solution

Answers

C, D,E

Step-by-step explanation:

4x=2

4+x=4 1/2

16x=8

Who can answer this ( see image).

Answers

9514 1404 393

Answer:

  042

Step-by-step explanation:

The first clue tells you the possibilities are ...

  6__, _8_, or __2

The second clue eliminates 6__ and tells you the possibilities are ...

  18_, _81, 1_2, 48_, _42

The third clue tells you two of the correct digits are 0 and 2, since 6 has already been eliminated by the first two clues. This only leaves 042.

042 is consistent with the last 2 clues.

The 3-digit key is 042.

Decide whether the triangle can be proven congruent I need help

Answers

Answer:

I think AAS can be used

Step-by-step explanation:

What is the volume of the right rectangular prism, in cubic centimeters?

Answers

Answer:

108 units

Step-by-step explanation:

Volume = length × width × height

V = 4 × 3 × 9

V = 108 units

twice a number divided by 3

Answers

Answer:

3/4

Step-by-step explanation:

IF you add 6 tens of thousands, 5 thousands and 3 hundreds together what is the value of the largest digit of the answer?

Answers

Answer:

ten thousands place

Step-by-step explanation:

6 tens of thousands = 60,000

5 thousands= 5,000

3 hundreds= 300

60,000

+  5,000

+      300

 65,300

PLS HURRYYYYYYYY
Which word describes the 5 in the expression 5n? A. coefficient B. exponent C. product D. sum

Answers

Answer:

Step-by-step explanation:

It would be either A or C

Most likely A Hope this helps ya <3

The word describing 5 in the given expression is a coefficient.

What is an expression?

An expression, in math, is a sentence with a minimum of two numbers and at least one math operation in it.

Given that an expression 5n, we need determine the word used for number 5,

We know that, the numbers connected to a variable by multiplication is called a coefficient.

Here,

5n = 5 × n,

n = variable, 5 = coefficient.

Hence the word describing 5 in the given expression is a coefficient.

Learn more about expression, click;

https://brainly.com/question/14083225

#SPJ2

Emily wants to know the volume of a beach ball. She deduces that the beach ball has diameter of 12 inches, and then uses the following formula to find the volume: (3.14) (12) V = (3.14) (1728) (5425.92) V=7234.56 cubic inches Emily's answer is incorrect. What did she do wrong? She used the formula for a cylinder instead of the formula for a sphere She used the formula for a sphere instead of the formula for a cone. Multiplying (314)(1728) does not equal 5425.92. She used the beach ball's diameter when she should have used the radius​

Answers

Answer:

D. She used the beach's ball's diameter when she should have used the radius

Step-by-step explanation:

To find the volume of the beach ball, using the volume of a sphere is the right formula to use, which is ⁴/3πr³.

The formula she used is correct.

Since the diameter of the ball is assumed to be 12 inches, what is needed to find the volume is the radius.

Radius (r) = ½(diameter) = ½(12) = 6 in.

This is where Emily made a mistake.

She used the diameter of the beach ball instead of its radius (r) which is needed in the equation.

She should have gotten,

V = ⁴/3(3.14)(6)² = 904.32 cubic inches

-Cuántos números 2 veras si cuentas de del 10 al 22?​

Answers

Answer:

12

Step-by-step explanation:

If 9:3 is equal to 3:1 and then what is 12:4 equal to ?

Answers

Answer:

36:12 or 3:1

Step-by-step explanation:

12:4= 36: 12

or 12:4 simplify= 3:1

hope it helps

i need help with geometry

Answers

Answer:

Pyramid

Step-by-step explanation:

f(x)=∣x∣
g(x)=∣x−1∣+9

We can think of g as a translated (shifted) version of f
Complete the description of the transformation.

Answers

Answer:

Step-by-step explanation:

There are two transformations, one vertical, one horizontal.

The + 9 part outside the absolute value sign moves the graph up 9 units.

Replacing  x  with  x - 1 moves the graph right 1 unit.

Comment:  The horizontal shifts sometimes appear backwards:  x - 1 looks like a shift to the left, but it's not.

Example:  f(4) = |4| = 4.  To get the same output (4) from g(x), you have to use a value for  x  that is 1 unit larger than 4.  g(5) = |5 - 1| = 4.

need help now! (probibility)

The weather forecast predicts a 60% chance of rain. However, if it does not rain, the Hershey family has a 90% chance of going to an amusement park. What is the probability of going to the amusement park?

Answers

Answer:

36%, I'm fairly certian

Step-by-step explanation:

A. 90%

B. 60%

C. 30%

D. 36%

D. makes the most sense to me

The probability of going to the amusement park will be 60%.

What is probability?

Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

Given that:-

The weather forecast predicts a 60% chance of rain. However, if it does not rain, the Hershey family has a 90% chance of going to an amusement park.

The probability will be calculated as:-

[tex]P|A|B|=\dfrac{P(A\cap B)}{P(B)}\\\\\\P|A|B|=\dfrac{0.6\times 0.9}{0.9}=0.6=60\%[/tex]

Therefore probability of going to the amusement park will be 60%.

To know more about probability follow

https://brainly.com/question/24756209

#SPJ2

6x - 4y = 38
x + y = 5

Answers

Answer: y= -4/5 and x= 29/5

Step-by-step explanation:

From eqn2 , x= 5-y. Thus substituting in eqn1 will give

6(5-y)-4y=38

30-6y-4y=38

30-10y=38

-10y=38-30

-10y= 8

y=8/-10---> y= -4/5

Substituting y in eqn2 we have

x+(-4/5)=5

x=5+4/5

x=29/5

algebra 1
what's the simplified form of (3s^2-2s+1)/(s^2-s+2)

Answers

Answer:

Step by Step Solution

More Icon

STEP

1

:

Equation at the end of step 1

 

STEP

2

:

           3s2 - 2s + 1

Simplify   ————————————

            s2 - s + 2

Trying to factor by splitting the middle term

2.1     Factoring  3s2 - 2s + 1

The first term is,  3s2  its coefficient is  3 .

The middle term is,  -2s  its coefficient is  -2 .

The last term, "the constant", is  +1

Step-1 : Multiply the coefficient of the first term by the constant   3 • 1 = 3

Step-2 : Find two factors of  3  whose sum equals the coefficient of the middle term, which is   -2 .

     -3    +    -1    =    -4

     -1    +    -3    =    -4

     1    +    3    =    4

     3    +    1    =    4

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Other Questions
Picture included-11 points-second time Use the distributive property to write an equivalent expression.10(2x + 8y - 6) How many atoms are In 2C2S3 I need help ill give brainliest NO LINKS PLEASE ANSWER ASAP! 20 POINTS! PLS HELPPP!!!!!Record players were common by....A. The early 1800sB. The late 1800sC. The early 1900s D. The late 1900s 30 points I WILL GIVE U BRAINLIEST AND THANKS AND 5 STARS please help this is very important this is a big part of my grade True or false: You should not have any expectations for the rest of the paperbased on the thesis statement. * Find the value of x.Equation?X? If f(x)=sin(x) and g(x)=sin(2x), which of the following statements is true?A f(x) is a taller version of g(x).B g(x) is a taller version of f(x).C The period of f(x) is half the size of g(x).DThe period of g(x) is half the size of f(x) 23.20m + on ?Which expression is equivalent to 54n 2s=ut + 1/2at^2Find the value of s when u = 5.2, t=7 and a = 1.6 CAN SOMEONE HELP ME I DONT UNERSTANND THIS PROBLEM The dinning table in the kitchen has a length of 2.3 m & a width of 3 m. Find the area of a sheet that will cover the table top How long has La Soufrire been active? HELP HELP HELP PLSSSS Please help! No bots are acceptable. Please answer both! there is no right answer, they just have to equal what ever number they tell you too. A circle has a diameter of 16 inches. What is the circumference of the circle using function on the calculator? A random sample of students were asked which award they would most like to win (Olympic Gold, Academy Award, or Nobel Prize), and asked which portion of the SAT they performed better on, between the Math and the Verbal. The results are summarized in the table below. Use this table to answer the following question.1. If P(M) is the proportion of students who did better on the Math portion of the SAT who prefer winning an Olympic Gold, and P(V) is the proportion of students who did better on the Verbal portion of the SAT who prefer winning an Olympic Gold. What is the standard error of the distribution of the difference of proportions? What is the slope of the line y +3 = (x +4)?