Mathematics High School

5. George walks to a friend's house. He walks 750 meters North, then realizes
he walked too far. He turns around and walks 250 meters South. The entire
walk takes him 13 seconds. What is his speed per second?|
I

Answers

Answer 1

Answer:

76.9

Step-by-step explanation:

5= d/t = 1000m/135 =76.9

Related Questions

Please help me for brainliest, a heart, and 5 star rating please!!!

Answers

C=3.14 x 26
C=81.64

C=2(3.14 x 13)
C=81.64

how many solutions does 3x+4=3x-2 have?

Answers

Answer: 2

Step-by-step explanation:

Answer:

No solutions.

Step-by-step explanation:

3x+4−3x=3x−2−3x

4=−2

4−4=−2−4

0=−6

0 does not equal -6, so there are no solutions.

-10118
What is the equation of the line that contains point (6, 4) and is parallel to line m?
А
y = -2x +16
B
y = 2x - 8
с
1
y = -x +7
2
D
y =

Answers

Answer:

yes

Step-by-step explanation:

Tiana uses 1 3/5 oz of detergent for each full load of laundry. How many full loads of laundry can she do with 100 oz of detergent? Show your work.

Answers

Answer:

63 Full loads of laundry

Step-by-step explanation:

We have been told in the question that  1 3/5 oz or 8/5 oz of detergent is used for a full load of laundry.

So,

1 full load of laundry requires 8/5 oz of detergent

Then,

x full loads of laundry require 100 oz of detergent

100 = 8/5x

x = 100 * 5/8

x = 63 Full loads of laundry (to the nearest whole number)

please help me asap :)!!​

Answers

Answer:

EFG = 90 degrees

GDH = 45 degrees

FEG = 45 degrees

DHG = 90 degrees

Step-by-step explanation:

True or false: the following graph demonstrates a proportional relationship between y and x. Explain.

Answers

False, it doesn't cross through the origin and it's addition.

state if polygons are similar

Answers

Yes polygons are similar just not the same size

HELP PLEASE!!! *document*

Answers

hopefully you can understand this, so we just plotting the points?

How do I find the rule of a linear table ?

Answers

Answer:

start  by checking that it's a linear relationship that's occurring by having a look at the difference in our X in each step against the difference in our Y in each step.

Step-by-step explanation:

A pancake recipe calls for 4 1/2 cups of whole wheat flour .If the chef wants to split the recipe into 3 equal batches , how much flour should be in each batch

Answers

Answer: [tex]1\dfrac12\text{ cups}[/tex]

Step-by-step explanation:

Given : Quantity of flour required for 1 recipe = [tex]4\dfrac12[/tex] cups

[tex]=\dfrac{4\times2+1}{2}[/tex] cups

[tex]=\dfrac92[/tex] cups

Now , if  chef wants to split the recipe into 3 equal batches , then quantity of flour in each batch = [tex]\dfrac92\div 3[/tex] cups

[tex]=\dfrac92\times\dfrac13\\\\=\dfrac32\text{ cups} = 1\dfrac12\text{ cups}[/tex]

Hence, the quantity of flour in each batch = [tex]1\dfrac12\text{ cups}[/tex]

Challenge:A swimming pool has two inflows and one oulow. Determine their maximal flowspeed in swimming pools per hour if you know the following:Inially, the pool was full.Then, the oulow and one of the inflows were open for minutes.Aerwards, the pool was full.Next, both inflows and the oulow were open for minutes.Aerwards, of the pool was filled with water.Finally, the operator noced that the oulow was open the whole me so he could not fill upthe pool as fast as possible. He closed the oulow and in the next minutes, the pool became full.

Answers

Answer:

Swimming is a lot of fun, but drowning is a real danger. Even kids who know how to swim can drown, so let's find out how to stay safe in the water.

Why Is It Important to Be Safe in the

If a° and b° are in linear pair, then a°+b°=?​

Answers

Answer:

2

Step-by-step explanation:

Anything to the power of 0 would equal 1 so if you add them, you would get 2

In the function f(x) = (x^2 -6x + ___) + 20, what number belongs in the blank to complete the square?

Answers

Answer:

blank = -11

Step-by-step explanation:

The given function is :

[tex]f(x) = (x^2 -6x+x)+20[/tex]

We need to find the number x such that it forms the complete square.

If x = -11, then it will becomes,

[tex]f(x) = (x^2 -6x+(-11))+20\\\\f(x)=x^2-6x+9[/tex]

We can write it as follows :

[tex]f(x)=x^2-2(1)(3x)+(3)^2[/tex] ..(1)

We know that,

[tex](a-b)^2=a^2-2ab+b^2[/tex] ...(2)

Comparing (1) and (2).

[tex]f(x)=(x-3)^2[/tex]

So, if we put the blank equals -11, then it will become the perfect square.

The length of the base of an isosceles triangle is x. The length of a leg is 4x-5. The perimeter of the triangle is 89. Find x.

Answers

An isosceles triangles legs are the same.
4x-5+4x-5+x=89
+10 +10
9x=99
/9 /9
X=11

In a lab experiment, 30 bacteria are placed in a petri dish. The conditions are such
that the number of bacteria is able to double every 6 hours. How many bacteria would
there be after 19 hours, to the nearest whole number?

Answers

After 19 hours the number of bacteria will be 193.8.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that in a lab experiment, 80 bacteria are placed in a petri dish, and the conditions are such that the number of bacteria is able to double every 19 hours, to determine how many bacteria would there be after 17 hours, to the nearest whole number, the following calculation must be performed:

The number of bacteria will be calculated as,

30 x ((2/6) x 19) = X

30 x (0.34x 19) = X

30 x 6.46= X

193.8= X


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can someone please help me

Answers

Answer:

12

Step-by-step explanation:

Maddie swims the hundred meter freestyle in 30 seconds what is her average speed in meters per minute​

Answers

Answer: 200 meters per minute

Explanation: we know that she can run 100 meters per 30 seconds. the question is asking in terms of minutes, however. we have to convert the seconds into minutes. How many minutes is 30 seconds? well, 60 seconds are in a minute so 30 seconds are in half a minute. 30 seconds = .5 minutes.

Now, we have to find how many meters she runs per minute. this means how many meters she runs in one minute. we create a proportion:

100 meters/ .5 minutes = x meters / 1 minute

we cross multiply to get 100 = .5x

then, we simplify by dividing each side by .5 which equals

200=x

Plz help!!
A concession stand sells 3 hot dogs for every 4 hamburgers. Hot dogs come in packages of 8.
How many packages of hot dogs does the owner need to buy if he predicts he will sell 256 hamburgers?

Answers

Answer:

The concession stand sold  46  hot dogs and  32  hamburgers.

Step-by-step explanation:

7(5-4x) in distributive property

Answers

Answer:

Distributive Property : a(b+c)= ab+ac

7(5-4x) = (35-28x) ★(35-28x) is the right answer.

Identify who made the error and what she did wrong.

1) Amelia made the error when she added 3.

2) Amelia made the error when she subtracted 4x.

3) Susie made the error when she subtracted 2.

4) Susie made the error when she subtracted 2x.

Answers

3) susie made the error when she subtracted 2.

When you are moving the number to the other side, you are supposed to change the sign.

She was supposed to add 2, not subtract.

Jayden reads 10 pages of a book in 7 minutes. Based on this rate, what is the total number of minutes it will take Jayden to read 200 pages?

Answers

Answer:

140 minutes

Step-by-step explanation:

It is 200 pages total and he reads 10 every 7 minutes. So, you do 200/10 and you get 20. Then do 7 times 20 to get your answer.

A shoe store uses a markup rate 40% when determining the retail price of its items. If the store pays $42.25 for a pair of shoes wholesale, what will be the retail price of that pair of shoes?

Answers

$59.15

42.25 x .4 = 16.90
42.25 + 16.90 = 59.15

Which equation is equivalent to 60% of 25? Select all that apply.

A. 0.6 • 25 = x

B. X• 1.6 =25

C. 6/10 = x/25

D. 60/100 = 25/x

E. x/25 = 60/100

F. 6.0 • 25=x

Answers

Answer:

Step-by-step explanation:

60% of 25 is equivalent to:

A. 0.6 * 25 = x

Answer:

Step-by-step explanation:

A. 0.6 * 25 = x

F. 6.0 • 25 = x

Two pounds of peaches cost $4.5, 5 pounds cost $11.25, and 10 pounds cost $22.5. Show that the relationship between the number of pounds of peaches and the cost is a proportional relationship. Then write an equation for the relationship. Describe the proportional relationship in words.

Answers

Answer:

4.50/2=2.25

11.25/5=2.5

22.5/10=2.25

Step-by-step explanation:

Hope this helps ♡

Mr. Jones has 550 goats, which is 10% more than Mr. King has. How many more goats does Mr. Jones have than Mr. King?

Answers

Answer:

55

Step-by-step explanation:

Number of Jone's goats = 550

Let Number of King's goat = x

Jone's goat is 10% more than King's ;

Thus, number King's goat would be ;

x = 550 - (10% of 550)

x = 550 - 55

x = 495

x = Mr. King's goat

Hence, Jones goat is :

550 - 495 = 55 more than Mr King's goat.

Mr King has 55 goats

Number of goats owned by Mr Jones is 550

let y represent the goats owned by Mr King

y= 550-(10% × 550)

= 550- (0.1×550)

= 550 - 55

= 495

= 550-495

= 55

Hence Mr King has 55 goats than Mr Jones

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The ratio of males to females at a camp is 5 to 4. If there are 40 males at the camp, how many females are there? *

Answers

Answer:

36 females

Step-by-step explanation:

40 divided by 5 is 9

9 times 4 is 36

dasdasdasdasdasdasdasdasdas.

Answers

Answer:

dodododododododo

Step-by-step explanation:

Answer:

Haha lol

Have a wonderful day!

Step-by-step explanation:

The dimensions of a standard tennis court are 36 ft. × 78 ft. with a net that is 3 ft. high in the center. The court is modified for players aged 10 and under such that the dimensions are 27 ft. × 60 ft., and the same net is used. Use similarity to determine if the modified court is similar to the standard court.​

Answers

Answer:

Modified court is not similar to the standard court

Step-by-step explanation:

Given that :

Dimension of standard tennis court:

36ft by 78ft

Net height = 3 ft

Dimension of Modified Court :

27ft by 60ft

Net height = 3ft

To examine similarity :

We obtain the dilation factor for width and length :

(Standard court length / modified court length)

= 36 ft / 27 ft

= 4 / 3

Width :

Standard court width / modified court width)

= 78 ft / 60 ft

= 13 / 10

Since the dilation factor for the width and length are different, then we can conclude that the standard and modified court are not similar

A straight line
has gradient 4
and
passes through the point (5, 23)
Work out the equation of the line.
Give your answer in the form
y= mx + c

Answers

Answer:

y=4x+c

23=4(5) +c

23=20+c

23-20=c

3=c

y=4x+3

Step-by-step explanation:

Answer: y=4x+7

Step-by-step explanation:

I don’t know this some one please help

Answers

Answer:

A

Step-by-step explanation:

Antonia: 150 x 12 + 4,500 = 6,300

Cal: 250 x 12 + 3,400 = 6,400

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