Mathematics High School

Lin runs 5 laps around a track in 6 minutes, if Lin runs 21 laps at the same rate, how long does it take her?​

Answers

Answer 1

Answer:

It would take approximately 24 minutes and 12 seconds.

Related Questions

y=6x-11
-2x-3y=-7
find the solution

Answers

Answer:

x = 13/8

y = 5/4

Step-by-step explanation:

y = 6x - 11

-2x - 3y = -7

6x - y = 11

-2x - 3y = -7

18x - 3y = 33

-2x - 3y = -7

16x = 26

x = 26/16 = 13/8

y = 39/4 - 11 = 5/4

y=6x-11

-2x-3y=-7

The solution to the system of equations is:

5/4

A school plans to build a swimming pool that has an area of 96 square meters. The school wants the pool to be more than 9 meters long. They also want the pool to be able to have at least four 2 meter wide lanes. If all the sides of the pool are whole meter lengths, what are the dimensions of the pool?

Answers

Answer:

If the pool has to have the length to be greater than 9 and the width to at least be 8 meters wide then it has to have dimensions of 12x8.

Hope this helps!

5. Using the factor tree, What are the prime factors of 36

Answers

Answer:

Step-by-step explanation:

A factor tree is not unique for a given number. Instead of expressing 36 as 2 × 18, we can express 36 as 6 × 6. Prime factorization of 36 using factor tree method is 2 × 2 × 3 × 3 = 2² × 3².

If barak spend 20$ at the mall. That represents 16% of the money he earned at the pizza parlor . How much money did barack earn

Answers

Answer:

$125

Step-by-step explanation:

20 is 16% of what number?

20 = .16n

n = 20/.16 = 125

Please solve this quickly thank you please. Everything is on the picture.

Answers

Find the rate of change for the direct variation using the formula y = kx

Solve for k: 10 = k2

K = 10/2

K = 5

Now solve for y when x is 8:

Y = 5(8)

Y = 40

If x=7 and y=−5, evaluate the following expression:3x−y/2​

Answers

Answer:

( 3 ) ( 7 ) − ( [tex]\frac{-5}{2}[/tex] )

= 21 − ( [tex]\frac{-5}{2}[/tex] )

=  [tex]\frac{47}{2}[/tex]

Hope it helps

Please mark me as the brainliest

Thank you

Please help!!! I can't answer this!!!!

Answers

Answer:

y=8x

Step-by-step explanation:

X is the input, Y is the output. The answer describes that whatever X is, if you times it by 8, you get Y. It can't be "x + 14" because that only works with the first number given. If you do Y = X + 14, 6 doesn't equal 48.

Whats 1+1 and 2+2 and 3+7 I’m in the first grade

Answers

Answer:

1 answer is 2

2 answer 4

3 answer 10

Step-by-step explanation:

Add 1+1

get 2

Add 2+2

get 4

Add 3+7

get 10

What is the image of the point (-6,0) after a rotation of 270° counterclockwise
about the origin?

Answers

Answer:

(- 1, - 6 )

Step-by-step explanation:

Under a counterclockwise rotation about the origin of 270°

a point (x, y ) → (y, - x ), thus

(6, - 1 ) → (- 1, - 6 )

Hope this helps!!!!

Are whole numbers closed with respect to multiplication?use an example to illustrate the answer

Answers

Step-by-step explanation:

The set of whole numbers of whole numbers is closed under addition and multiplication when because you add or multiple any whole numbers, the result is always whole number.EXAMPLE, closure property, 5 and 6 is whole numbers and multiplication of 5 and 6 is 30. Also, 30 is a whole number.

Answer:

yup. whole numbers begin from zero

so any whole number times any whole number will give me a whole number

eg 0×4=0

67×98765=6617255

etc

note. a negative number isn't a whole number

Giving Brainliest, easy question

Answers

Answer:

the 2nd answer

Step-by-step explanation:

Brainly does not support this explanation.For more go to :                           https://thatsthefinger.com/

Answer: the second answer

Please help with this area question!

Answers

Answer:

Step-by-step explanation:

i thinks its 6 (im sorry if im wrong)

6 inches I think yeah

What is the slope of the line that goes through
(2,-2) and (-1, 1)?

Answers

Answer:

m = -1

Step-by-step explanation:

use the slope formula so m = 1- -2 / -1 - 2

m = 1+2/-3, m=3/-3 so m = -1

WHATS THE ANSWER?????

Answers

X=30
Y≈29.732
Hope this helps!

please help! i’ll mark brainliest

Answers

I'm sorry there is a lot of bots.hope you get the right answer

will mark brainless!!! 7. Step 2: Calculate the perimeter of DEF using the scale factor.

62.5 ft

196.5 ft

163.75 ft

58 ft

Answers

163.75 ft is the answer

a watch is sold for $130 at a loss of $30. what was the original cost of the watch​

Answers

Answer:

Step-by-step explanation:

130.00 + 30.00 =$160.00

It was at a loss, so it was reduced by 30.00

Simplify the expression 5(x+2x)+(3*5)+(4)(x)

Answers

Answer:  3x -- 5 x + 9

Step-by-step explanation: = x (3--1) + (--5 + 9)

                                             = x (2) + 4

                                             = 2x + 4

                                  putting x =3

                                           = 2 (3) + 4

                                           = 6 + 4

                                           = 10

9514 1404 393

Answer:

   19x +15

Step-by-step explanation:

5(x+2x)+(3*5)+(4)(x)

= 5(3x) +15 +4x

= 15x +4x +15

= 19x +15

What is m∠1 ? I need help.

Answers

Answer:

*update* 99

Step-by-step explanation:

If g = X - 9. and if x = 15, what is g?

Answers

Answer:

6

Step-by-step explanation:

g = x - 9

x = 15

substitute 15 for x in the first equation

g = 15 - 9

g = 6

Answer:

g = 6

Step-by-step explanation:

g = x - 9

x = 15

g = 15 - 9

g = 6

Please help me with this I will make you brainlist if you respond with no links and fully! Do NOT steal points.

Answers

Answer: C. 113.1 cubic centimeters

Step-by-step explanation:

Volume of a sphere= [tex]\frac{4}{3}[/tex](3.14)(r)^3

Since we know r then just plug in to get 4/3(3.14)(3)^3= 113.1

So the answer is C

Answer:

113.04 cm3

Step-by-step explanation:

Which is a quadrilateral that could have one pair of parallel sides and one pair of sides that are not parallel?

Answers

Answer:

trapezoid.

Step-by-step explanation:

A trapezoid is a convex quadrilateral. A trapezoid has at least on pair of parallel sides. the parallel sides are called bases while the non parallel sides are called legs

Characteristics of a trapezoid

It has 4 vertices and edges

If both pairs of its opposite sides of a trapezoid are parallel, it becomes a parallelogram

Area of a trapezoid = [tex]\frac{1}{2}[/tex] x (sum of the lengths of the parallel sides) x height

Perimeter =  sum of lengths of sides of a trapezoid

sin 20 = cos a Find a
Please be sure to show your work.​

Answers

Answer:

Step-by-step explanation:

cos a=sin20=sin (90-70)=cos 70

a=70°

Please help as quickly as possible, this is Algebra 1!

Answers

Answer:

First-term is 7

The second term is 14

and the third term is 28

i think so im not 100%

plz hurry
Which graph best represents the equation 5x + y = 4?

Answers

Answer:

answer is B

Step-by-step explanation:

Answer:

Graph B

Step-by-step explanation:

5x + y = 4

-5x        -5x

y = -5x + 4

slope = -5

y - intercept = 4

If using the method of completing the square to solve the quadratic equation
x2 + 2x 31 = 0, which number would have to be added to "complete the
square"?

Answers

Answer:

3

Step-by-step explanation:

Image is above!
What is the equation of the line in slope-intercept form?

Write your answer using integers, proper fractions, and improper fractions in simplest form.

Answers

Answer:

y=x+600

Step-by-step explanation:

Hey There!

Slope intercept form is y=mx+b

where m = slope and b = y intercept

slope is change in y over change in x

as y goes up 200 x goes up 200 so the slope is 200/200 or just 1

The y intercept is at (0,600) so the y intercept is 600 now we just put everything together and get that the equation is

y=x+600

The sum of the lengths of any two sides of a triangle must be greater than the third side. If a triangle has one side that is 23cm and a second side that is 4cm less than twice the third side, what are the possible lengths for the second and third sides?

Answers

Answer:

21 < x < 27

Step-by-step explanation:

Given that :

Side 1 = 23

Side 3 = x

Side 2 = 2x - 4

23 + x > 2x - 4

Collect like terms

x - 2x > - 4-23

-x > - 27

x < 27

Also ;

23 + 2x - 4 > x

23 - 4 > x - 2x

21 > - x

-21 < x

x > - 21

Hence,

Possible values of x :

x > 21 and x < 27

21 < x < 27

PLS HELP ME IVE BEEN HERE FOR SO LONG PLSSSS

Answers

10m hope this helps your very welcome

What is the special name of
adjoining triangle FAN on the
basis of angle ? A=55, B=85 and C=45​

Answers

Answer:

eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Step-by-step explanation:

eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

The given trianagle FAN is an acute triangle.

Step-by-step explanation:

There are three types of triangles on the basis of angle:

Acute triangle: All three angles are less than 90°Obtuse triangle: One out of three angles is greater than 90°.Right-angled triangle: One of the measurements of an angle will be equal to 90°.

(As shown in image attached)

Given:

A triangle FAN with an angle measurement of each angke.

To find:

The name adjoining triangle FAN on the  basis of angle.

Solution:

In ΔFAN

∠A=55°, ∠F=85° ,and ∠C=45​°

∠A<90°, ∠F<90° ,and ∠C<90°

All the given three angles of triangle FAN are less than 90°, which imolies that the given trianagle FAN is an acute triangle.

Learn more about triangles here:

brainly.com/question/1058720?referrer=searchResults

brainly.com/question/2269348?referrer=searchResult

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