Carol walks 12km at xkm/h and then a further 6 km at (x-1) km/h the total time taken is 5 hours . Write an equation in terms of x and show that it simplifies to 5x squared -23x+12=0

Answers

Answer 1

Step-by-step explanation:

12/x + 6/(x-1) = 5

12(x-1) + 6(x) = 5(x)(x-1)

18x - 12 = 5x² - 5x

5x² - 23x + 12 = 0. (Shown)


Related Questions

what is the equivalent ratios ig 5:4

Answers

Step-by-step explanation:

5:4 can be the simplest form of

10:8

10:8 yes I think the answer

a bakery sold 208 chocolate cupcakes in a day,which was 25%of the total number of cupcakes sold that day. How many cupcakes did the bakery sell that day

Answers

Answer:

832

Step-by-step explanation:

multiply the 25% by 4

Answer:

Coryxkenshin

Step-by-step explanation:

Mark bought gifts for his friends, and each gift cost $9. Let y represent the total cost and represent the number of gifts. Write an equation to represent the proportional relationship between the total cost and the number of gifts he bought. (4 points) Oy=8x a 1 y = 8 x Oy=9x O 1 y = 9 x​

Answers

Answer:

y=9x (O 1)

Step-by-step explanation:

9 times the number of gifts he bought which lets say is x will equal your answer (y).

10 − 8 ÷ 2 – 2^2 = ?

Answers

Answer:

the answer to this is 2

Step-by-step explanation:

can you mark me as brainliest pls

Answer:

That would be 2

I need some help on this

Answers

Answer:

b, k = -4

Step-by-step explanation:

3/2 = k + 11/2

=> 3/2 - 11/2 = k

=> -8/2 = k

=> k = -4

Answer:

the answer to this problem is -4

Which of the following fractions is equivalent to (−13)÷(−6)? Select two that apply.



A −13/6
B −6/13
C −2 1/6
D 2 1/6
E 6/13
F 13/6

Answers

Answer:

D and F

Step-by-step explanation:

Please mark brainliest.

Answer: D 2 1/6  F 13/6

Step-by-step explanation: I got this question on my test

The value of 2x/3 - 7 = 5 is

Answers

Answer:

x = 18

Step-by-step explanation:

2x/ 3 - 7 = 5 (multiply both sides by 3 to get rid of the 3 under the 2x)

2x - 21 = 15 ( add 21 to both sides)

2x = 36 (divide both sides by 2)

x = 18

HOpe this helps ya!!

Q#2 Pleaseeee answer my guy it’s literally the biggest grade I got and I’m tiredddd

Answers

Answer:

Add 3 to both sides.

2x=9+3

simplify 9+3 to 12

2x=12

Divide both sides by 12

x= 12

     2

simplify

x=12

The graph shows the square root of the parent function. which statement is true?
A. 0,0) is the x- and y-intercept of the function
B. 0,1) is the x- and y-intercept of the function
C. This function has no intercepts
D. 1,1) is the x- and y-intercept of the function​

Answers

Answer: A is correct

Step-by-step explanation:

The graph shows the square root of the parent function and function has no intercepts

What is the parent function?

A parent function is the simplest function that still satisfies the definition of a certain type of function. For example, when we think of the linear functions which make up a family of functions, the parent function would be y = x. This is the simplest linear function.

What are intercept?

Using the common convention that the horizontal axis represents a variable x and the vertical axis represents a variable y, a y-intercept or vertical intercept is a point where the graph of a function or relation intersects the y-axis of the coordinate system. As such, these points satisfy x = 0.

According to the question

Graph shows the square root of the parent function.

i.e ,

y = [tex]\sqrt{x}[/tex]

As,

This equation will never touch the x-axis or the y-axis, so the function does not have an x- or y- intercept.

Therefore,

This function has no intercepts ,

Hence, The graph shows the square root of the parent function and function has no intercepts .

To know more about parent function and intercepts here:

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write an equivalent expression for 40 + 8(n-3)​

Answers

an equivalent expression is
40 + 8n - 24
simplified:
16 + 8n

hope this helps!

A model of a skyscraper uses the scale of 2 inches = 45 feet. If the actual skyscraper is 992 feet tall, how tall is the model?

Answers

Answer:

44.08 or 44.1

Step-by-step explanation:

OK so the basics of this question is that for every 45 feet of the actual skyscraper we have 2 inches in the model. The first thing we do is divide 992/45 which equals 22.04. Know if this was 1 inch for every 45 feet we would be done however we need to multiply this number by 2 to get our answer so 22.04*2 =44.08

the ratio of teachers to students is 1 to 26 which is a equivalent ratio​

Answers

Answer:

1/26

Step-by-step explanation:

Today, there were 3 students absent from the math class. Each students that attended school solved 17 equations in math class. At the end of the class the teacher told the students that together they solved 408 equations today. How many students are this class if no one is absent?

Answers

Answer:

27 students

Step-by-step explanation:

Number of students present in the math class:

408/17 = 24

Number of students in this class:

24 + 3 = 27

Simonne used the following steps to simplify the given expression.

Answers

Is there more to the question

Martha read 1/6of her library books on Saturday and 5/12 of her book on Sunday, how much more does Martha have left to read

Answers

Answer: She has 5/12 left of her book to read as well

Step-by-step explanation:

Martha read 1/6 books on Saturday and 5/12 books on Sunday, then the books left to read will be 5/12.

What are arithmetic Operations?

The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or even more items.

Included in them is the study of integers, especially the order of operations, which is important for all other areas of mathematics, notably algebra, data management, and geometry.

As per the given information in the question,

Books read by Martha on Saturday = 1/6

Books read by Martha on Sunday = 5/12

Then, the number of books left to read is,

1 - (1/6 + 5/12)

Take LCM as 12,

[12 - (2 + 5)]/12

= (12 - 7)/12

= 5 / 12

To know more about arithmetic operations:

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Catalinas mother recorded her Height each year. The table below shows her height in inches

Answers

You need to post the table of heights

i need help please!! its math !

Answers

Answer:

perimeter = 2(8x+3) + 2(5) area= (8x+3) • 5

Step-by-step explanation:

perimeter = 2(length) + 2(width)

if length equals (8x+3) and width equals 5 then you would just plug those numbers into the equation which gives you...

perimeter = 2(8x+3) + 2(5)

area = length • width

like i previously said above if length equals (8x+3) and width equals 5 than you would just plug those numbers into the equation which gives you...

area = (8x+3) • 5

Mr. Vitorello spends 35% of his salary on rent. He makes $2,500 each month. How much does he spend on rent each month?

Answers

Answer: He spends 875 a month on rent.

Step-by-step explanation:

35 x 2500  = 87500

87500 / 100 = 875

Hope this helps :)

Answer:

He spends $10,500

Step-by-step explanation:

Since salary is yearly we multiply 2500 by 12 and we get 30000

And 35% of 30000 is 10500

how can you tell whether or not a figure is a scaled copy of another figure?

Answers

Answer:

If they are divisible by the numbers in the original shape, then try and see if the others sides of the scaled copy are scaled by the same factor. If they are, then they are a scaled copy.

Step-by-step explanation:

is the earth flat because i was watching YouTub.e and someone told me it was

Answers

interesting thank you

Answer:

The Earth is flat when displayed on a map. The world is also a sphere when displayed on a globe. If you look at a picture of Earth from space it is a sphere. It kinda depends who you ask. My classmate have been debating that since 6th grade and we are in 9th now XD.

Exterior Angle Theorem

Answers

Answer:

points

Step-by-step explanation:

A researcher conducts an experiment to determine whether moderate doses of St. John's Wort have any effect of memory for college students. For this study, what is the independent variable

Answers

Answer:

Consumption of moderate doses of St. John's Wort

Step-by-step explanation:

A variable that changes without depending on the other variable is called the independent variable and the variable that changes relative to the independent variable is called the dependent variable.

Here the effect of St. John's Wort on memory is being studied.

So, the independent variable would be the consumption of moderate doses of St. John's Wort and the dependent variable would be the effect it has on the person's memory.

What is an equation if the line that passes thriugh the point (-4,-6) and is parallel to the line 3x - y = 6

Answers

3x - y = 6
3x = 6 + y
y = 3x - 6, slope = 3
Y = 3x + b
-6 = 3(-4) + b
-6 = -12 + b, b = 6
Solution: y = 3x + 6

Answer:

the desired equation is 3x - y = -6

Step-by-step explanation:

Recall that parallel lines have the same slope.  Thus, the desired line has an equation of the form 3x - y = C, where C is determined by the coordinates of the point (-4, -6).

3x - y = C becomes 3(-4) - (-6) = C after substitution of -4 and -6 for x and y respectively.  Then   -12 + 6 = C, and C = -6.

Thus, the desired equation is 3x - y = -6

A pizzeria's gains and losses for 3 months are: $627, -$480, and $854. What is the pizzeria's total profit or loss after 3 months?
A. $1961
B. $147
C. $374
D. $1001

Answers

Answer:

1001

Step-by-step explanation:

Answer:

$1001

Step-by-step explanation:

$627 -$480 + $854 = 1001$

Which angle corresponds to angle 6

Answers

It is angle 3. Help this helps!
It is 3 they are correct have a nice day

Find the first 5 terms of the sequence, and state its rule.
12n-12


Need it asap i will mark brainliest

Answers

Answer:

Sequence; 12, 24, 36, 48, 60, 72, 84, 89, 108...

12th value: 144

The sum of all numbers go through the 12th : 936

Step-by-step explanation:

Answer:

It’s rule is to find the first 5 terms of the variable “n”

Step-by-step explanation:

John has $5 in his bank account when he gets a job. He begins making $109 a day. A student found that the equation that represents this situation is y = 5x + 109.

Answers

Answer:

the student answer is incorrect

Correct answer: y = 109x + 5

Step-by-step explanation:

He STARTS with $5, which means it says aside. Since he REPEATEDLY recieves $109 EVERY day, it is as 109x because you don't know how much days there are.  So the correct equation is y = 109x + 5.

Hope this helps!

Have a nice day!

The price of a Thanksgiving turkey sold at Fry's is equal to the original cost in dollars that Fry's paid
for it plus a markup of 6/10 of that original cost (so they can make a profit). If the original cost of the
turkey is x, write an expression to represent the final cost of
the turkey

Answers

Answer: The largest per pound at which turkeys sold

Step-by-step explanation:

hope this helps!

Answer:

x + 6/10x =t

Step-by-step explanation:

the t is for the final cost, if this doesnt work, type this into keyboard and you might find a different answer

Somebody know this? I need halp T^T

Answers

Answer:

y=7 or 7 seven degrees Celsius.

Step-by-step explanation:

Answer:

7 degrees celsius

Step-by-step explanation:

it says -9 m so look along the x(m) axis till you get to -9. Then go 7 spaces up and its 7 degrees.

Hope this helps plz hit the crown :D

The price of milk increased from $2 to $2.50. What is the percent of change for the price of milk?

Answers

25.00%

Or

25c

Have a Merry Christmas!

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