Mathematics High School

HELPP *20 points*
Christof walks 2.5 kilometers to the library. He knows that 5 kilometers is approximately 3.1 miles. How many miles, rounded to the nearest hundredth, does Christof walk to the library? ​

HELPP *20 Points*Christof Walks 2.5 Kilometers To The Library. He Knows That 5 Kilometers Is Approximately

Answers

Answer 1

Answer:

the answer for this problem should be half of 3.1 sense 2.5 is half of 5 so split 3.1 in have to get 1.55. hope this helps.

Answer 2

The number of miles that is equal to 2.5 km will be 1.55 miles.

What are ratios and proportions?

A ratio is an ordered set of integers a and b expressed as a/b, with b never equaling 0. A proportional is a mathematical expression in which two things are equal.

Christof walks 2.5 kilometers to the library. He knows that 5 kilometers are approximately 3.1 miles.

Then we have

Let x be the number of miles that is equal to 2.5 km. Then we get

x/2.5 = 3.1/5

      x = 1.55 miles

More about the ratio and the proportion link is given below.

https://brainly.com/question/14335762

#SPJ2

Related Questions

HELP PLZZZZZzZZzzzzzz

Answers

Answer:

43.98

Step-by-step explanation:

c) A mother is three times as old as her daughter. Five years ago, she was five times
as old as her daughter was. Find their present age.​

Answers

Answer:

Mother's age is 35 while the daughter's age is 15

Step-by-step explanation:

If 5 years ago the mother was 3 times older and 10x3=30 then the mother was 30 and the daughter was 10, add 5 to both the numbers and you have your answer.

Answer:

6 and 10...

Make of you will of that.

The table shows the approximate diameters of four bacteria cells.
Bacteria Cell Diameters
Cell
Diameter
(meters)
W
0.0000029
x
0.000000024
Y
0.00002
Z
0.00000027

Put them in order from least to greatest diameter

Answers

Answer:B

Step-by-step explanation:

Answer:

I think it's C

Step-by-step explanation:

If the numbers have more zeroes, they are farther from being whole numbers and whole numbers and bigger than decimals. I kind of suck at explaining but that's kind of it

help guys due really soon 28 points

Answers

Answer:50 +30 = 80 i guess

Step-by-step explanation:

36.8 is the sum of r and 13.8
x=

Answers

Answer:

r=23

Step-by-step explanation:

sum: quantity obtained by addition

r+13.8=36.8

r=36.8-13.8

r=23

what is the sum for nine plus ten

Answers

Answer:

9+10= 19

Hope this helps you! :)

Answer:

21

Step-by-step explanation:

Duh

10x-3y=3 Can somebody find the slope for me please

Answers

Answer:

Y=-1+10/3x

Step-by-step explanation:

The slope is 10/3x and the point is -1. I think this is correct, but I’m not sure

Answer:

y=10/3

Step-by-step explanation:

10x-3y=3

-10x -10x move 10x

-3y=-10x+3

-3. -3. -3. divide

y=10/3x

y = x + 8
4x – 2y = -12​

Answers

Answer:

x = 14

y = 22

Step-by-step explanation:

y = x + 8

4x - 2y = -12

Solve

_____________

Since we see that the first equation has y alone, we can substitute it into the values of y in the second equation.

4x - 2(x + 8) = -12

Distribute :

4x - (2(x) + 2(8)) = -12

4x - 2x +16 = -12

Combine like terms :

2x + 16 = -12

Subtract 16 from both sides :

2x = -28

Divide 2 from both sides to get x alone :

x = 14

Now that we know what x is, substitute it in the first equation to get y :

y = (14) + 8

y = 22

Answer:

(2 , 10) or x = 2 & y = 10

Step-by-step explanation:

y = x + 8

4x – 2y = -12​

1. Substitute x + 8 in for the y in the other equation.

2. Solve for x

3. Take the solution for x and substitute the number in for the x in y = x + 8.

4. Solve for y.

5. Your answer is the result.

4x - 2(x + 8) = -12                       Distributive Property

4x - 2x - 16 = -12                        Combine like terms

2x - 16 = -12                               Isolate the x, so start by moving -16

    + 16   +16                              

2x + 0 = 4                                  Delete the 0. It is a place holder you don't need

      2x = 4                                 Isolate the x by dividing both terms by 2.

        2    2

        x = 2

y = x + 8                      Substitute the 2 in for x and solve the one step equation.

y = 2 + 8

y = 10

I need help with this it’s annoying me

Answers

Answer:

the 4th option down/second option up

Answer:

the second and fourth options

Step-by-step explanation:


PLEASE ANSWER ASAP !!!!

Answers

Slope = 4/1 or y=4x -8

Answer:

Step-by-step explanation:

(3,4)(4,8)

4/1

m=4

Calculate the mean of 66,73,65,60​

Answers

Answer:

66

Step-by-step explanation:

The mean is the average, to find you add all the numbers up and then divide by the amount of numbers you added.

66+73+65+60 = 264

264 : 4 = 66

I hope this helps :0)

What is the slope of a line which is perpendicular to the line whose equation is y=7x-5?

Answers

Answer:

-1/7

Step-by-step explanation:

I think this because the  opposite of 7 is -1/7 and that is the meaning op perpendicular.

can someone tell me how to solve 8th grade slope! I'll put you as brainliest!! ​

Answers

Answer:

Step-by-step explanation:

Well, the formula to find slope is y2-y1 / x2-x1

Here's an example:

(2,12) (4,24)

12-24 / 2-4 =

-12/-2 or 6

You would use:

(y=mx+b) to find an entire equation, including the y intercept

Let me know if this helps, and if it doesn't, I hope I'll be able to explain it better.

Answer (Actual answer) for 16 points.

Answers

Answer:

i cannot see the picture

Step-by-step explanation:

Answer:

yeah i definitely cant see the picture too

a car dealerships goal is to sell a mean of 35 cars per day. In one week, it sold the following numbers of cars each day: 44 35 23 29 30 21

How many more cars would it have had to sell during the week to meet its goal?
A. 5
B. 25
C. 15
D. 35

Answers

Answer:

Step-by-step explanation:

B. 25

Add 25 to the total of 220 then divide by the 7 days to get a mean of 35 cars

Devon has a sandbox that is 3 feet long, 3 feet wide, and } foot deep. How
many cubic feet of sand does he need to fill the sandbox completely?

HELP FASTT!!! giving brainless

Answers

Answer:

B) 5 1/4

Step-by-step explanation:

3.5x3x0.5=5.25 or 5 1/4

HELP DUE IN 10 MINS!

Attached is the Question.

Answers

Answer:

Step-by-step explanation:

postulate : ASA

Congruent statement : LON  = MNO

Answer:

LO ≅ MN - given∠LON ≅ ∠MNO - givenON ≅ NO - reflexive propertyTwo sides and the included angle

Postulate: SAS

Congruency Statement: ΔLON ≅ ΔMNO

Can someone pls help me with this?

Answers

Answer:

C

Step-by-step explanation:

Because the line is straight and the line is supposed to be going straight up

James planted a tree in his backyard. The initial height is 5 ft tall. It grows 1/2 ft a year after that.

Answers

Answer:

New height = 11/2 ft

New height = 5 + 1/2(N)

Step-by-step explanation:

Given:

Initial height = 5 ft

Grown height = 1/2 ft

Find:

New height

Computation:

New height = Initial height + Grown height

New height = 5 + 1/2

New height = 11/2 ft

Equation;

New height = 5 + 1/2(Number of year)

New height = 5 + 1/2(N)

I need some help pls​

Answers

M=-3
Y-intercept=-4




I hope this helps you

Write the ratios sin X and cos X

Answers

Answer:

.

Step-by-step explanation:

A. y+2 = -4(X-8)
B. y- 8 = -4(x + 2)
C. y+ 8 = -4(x-2)
D. y-2 = -4(x+8)


PLEASE HELP AND ASAP THANKS!!!!!

Answers

ExplanationPoint-Slope Form

[tex]y-y_1=m(x-x_1)[/tex]

Given the x1 and y1 = given point.

Substitution x1 = 2 and y1 = -8 in the equation.

[tex] \begin{cases} x_1 = 2 \\ y_1 = - 8 \end{cases} \\ y - ( - 8) = - 4(x - 2) \\ y + 8 = - 4(x - 2)[/tex]

Hence, the solution is C choice.

Answer

[tex]y + 8 = - 4(x - 2)[/tex]

The cost(c)of chicken varies directly as its weigth(w)equation​

Answers

Answer:

[tex]c = kw[/tex]

Step-by-step explanation:

Given

c varies directly as w

Required

Write the equation

c varies directly as w.

Mathematically, this is represented as:

[tex]c\ \alpha\ w[/tex]

Convert to equation.

[tex]c = kw[/tex]

Where k is the constant of variation

What is the area of this figure?
2D
5 m
write your answer using decimals. Use 3.14 for pie

___ square kilometers

Answers

Answer: i eat fooood bro

Step-by-step explanation:

Here is a right-angled triangle.
y cm
8.2 cm
12.3 cm
Work out the value of y.
Give your answer correct to 1 decimal place.

Answers

Answer:

9.1

Step-by-step explanation:

Let,

hypotenuse = 12.3 cm

perpendicular = 8.2 cm

base = y cm

(hypotenuse)^2 = (perpendicular)^2 + (base)^2

(12.3)^2 = (8.2)^2 + y^2

151.29 = 67.24 + y^2

151.29 - 67.24 = y^2

.: y^2 = 84.05

y = √84.05

y = 9.1

find the term to term rule for
7, 6, 8, 7, 9​

Answers

Answer:

-1, +2

Step-by-step explanation:

The difference between the 1st two terms is -1, the difference between the next two is + 2, and so on

please help seems easy just can’t figure out the answer

Answers

Answer:

b is 125

Step-by-step explanation:

a table of values represents a proportional relationship when both the____and___ are_

Answers

X/Y VALUES and RATIOS are the SAME
... i think, i’m no genius lol

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

C=12

Step-by-step explanation:

2x12=24

3x12=36

5x12=60

I legit do not know which it is.

Answers

Given:

The inequality is

[tex]c\leq 7[/tex]

Where, c is the number of cars in the parking lot.

To find:

The graph for the given inequality.

Solution:

We have,

[tex]c\leq 7[/tex]

Here, the value of c can be any real number less than or equal to 7. But c is the number of cars, so c must be a non-zero integer.

Since, all the non-zero integer values less than or equal to 7 are included in the solution set, therefore, c = 0,1, 2,3,4, 5,6,7.

In the graph of the given inequality, there are close circles on  0,1, 2,3,4, 5,6,7 as shown in option D.

Therefore, the correct option is D.

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