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,​

Answer:

S

angle S would also be an obtuse angle measuring 118°

corresponding angle

Step-by-step explanation:

Answer:

s.

Step-by-step explanation:

s is a corresponding angle to the 118 angle.

Answer:

Answer= A- 7%

Step-by-step explanation:

42/100= 42%

35/100= 35%

42%-35%= 7%

Answer:

the answer is 880 yards more

Step-by-step explanation:

1 mile is equal to 5280 feet or 1760 yards.

then subtract your two numbers that have the same unit (yards)

1760 yards - 880 yards = 880 yards

Answer:

31 r 3

i know

Answer:

Step-by-step explanation:

940 divided by 30

try to fit 30 into 94 as many times possible

30*3 =90 , 94 -90 =4

3 goes on top

4 on the bottom and is join by 0 that you bring down to make 40

try to fit 30 into 40

30*1=30, 40 -30 =10

940/30 = 31 remainder 10

Answer:

that does not make sense ?????????????????????????????????????????

9514 1404 393

Answer:

  200√2 square units

Step-by-step explanation:

The area of a regular polygon with n sides and radius r is given by the formula ...

  A = (n/2)r²·sin(360°/n)

Here, we have n=8 and r=10, so the area is ...

  A = (8/2)(10²)sin(360°/8) = 4·100·√2/2

  A = 200√2 . . . square units

Answer:

=2

Step-by-step explanation:

Answer:

x = 55

Step-by-step explanation:

Use the property of a parallelogram,

" Opposite interior angles of a parallelogram are equal in measure"

By this property, opposite angles given in the figure will be equal.

(2x + 5)° = 115°

2x = 115 - 5

2x = 110

x = [tex]\frac{110}{2}[/tex]

x = 55

Therefore, x = 55 will be the value.

Answer:

14/21 or 2/3

Step-by-step explanation:

66 percent

Answer:

Step-by-step explanation:

Answer:

z = z

Step-by-step explanation:

first you should combine like terms on the left side of the equation

9z + 7z = 16z

now rewrite

16z-6 = 16z-6

add 6 to both sides

16z = 16z

divide both sides by 16

z = z

Answer:

Both sides are equal. z has no solution. The input is an identity. It is true for all values.

Step-by-step explanation:

9z - 6 + 7z = 16z - 6

16z - 6 = 16z - 6

Both sides are equal. z has no solution. The input is an identity. It is true for all values.

Answer:

0 | -6

____

3 | -15

Step-by-step explanation:

just plug in the numbers they give u in the chart

when x = 0 -> y = -3*0-6 = -6

when y = -15 -> -15 = -3x-6 -> x = 3

The graph of the line y = -3x -6 is giving the solution (0,-6) and (3,-15).

An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.

A graph is the representation of the data on the vertical and horizontal coordinates so we can see the trend of the data.

The given equation of the line is y = -3x - 6. the two points on the graph are satisfying the equation.

x = 0 , y = -3 x 0-6 = -6

y = -15 -> -15 = -3 x-6 -> x = 3

Therefore, the graph of the line y = -3x -6 is giving the solution (0,-6) and (3,-15).

To know more about an equation of the line follow

https://brainly.com/question/28732353

#SPJ2

Question:

What is the area of the regular polygon

Answer:

Step-by-step explanation:

Since the radius is 6 the Length/Width should also be 6 so the polygon has 6 sides so 6/3 = 2 x 6 = 12 x 6 = 72

72 is your answer

Answer:

C

Step-by-step explanation:

Saw it on a quizlet

Answer:

Step-by-step explanation:

Answer: hi

Step-by-step explanation:

ha lol imma waste your time now

Answer:

Choice A

Step-by-step explanation:

y-intercept = -3

double-checked on calculator

Answer:

(-9, -12)

Step-by-step explanation:

Given the expressions

y=x+3

y=1/3x-5

Equating both expressions;

y = y

x + 3 = 1/3x - 5

x - 1/3x = -5 -3

2/3 x = -8

x/3 = -4

x = -12

Since

y = x+ 3

y = -12 + 3

x = -9

Hence the required solution is (-9, -12)

Answer:

 2 1/2 o 10 1/2

Step-by-step explanation:

q podría estar 6.5 unidades a la derecha ... oa la izquierda ... del punto p.

a la derecha: p + q ⇒ -4 + (6 1/2) = 2 1/2

a la izquierda: p - q ⇒ -4 -(6 1/2) = -10 1/2

Answer:

ooo me vengo xd

Step-by-step explanation:

3.14. so yeahhhhhhhhhhhhhhhhh

Answer:362

Step-by-step explanation:

You need to multiply

Answer:

126

Step-by-step explanation:

you add them all up and the sides that don't have the number there's already info about it it's like this

18 x 3 + 30 + 24 + 18 = 126

and you don't know how to do 18 x 3 lol it's 54

Answer:

below.

Step-by-step explanation:

408 = 2*2*2*3*17

1032 = 2*2*2*3*43

So the HCF is 2*2*2*3 = 24

24 = 2/1032 + p/408

24 - 2/1032 = p/408

p = (24 - 2/1032) * 408

p = 9791.21 to nearest hundredth.

Answer: 2/5 or 40%

Step-by-step explanation:

10 total

4 red

4/10 are red

as a reduced fraction: 2/5

as a percent: 40%

Answer:

40%

Step-by-step explanation:

4/10 marbles are red therefore there is a 40 % chance you get a red marble

4/10 = .4

.4 x 100% = 40 %

Answer:

x=0

Step-by-step explanation:

add 4 to -1 that gives you 3 and then slide 3 to the other side which gives you 3-3 and that equals 0.

Answer:

1/64

Step-by-step explanation:

You divide by 4 each time.

It goes 16,4,1,1/4,1/16, 1/64 and so on

Answer:

the answer is 648 bc when you multiply all the answer one at a time you would get 648

Answer:

Area = 12

Step-by-step explanation:

Given

See attachment

Required

Area of [tex]\triangle PQR[/tex]

From the attached image, we have:

[tex]P = (6,10)[/tex]

[tex]Q = (10,8)[/tex]

[tex]R = (6,4)[/tex]

The area is then calculated as:

[tex]A = \frac{1}{2}|(x1y2 - x2y1) + (x2y3 - x3y2) + (x3y1 - x1y3)|[/tex]

So, we have:

[tex]A = \frac{1}{2}|(6*8 - 10*10) + (10*4 - 6*8) + (6*10 - 6*4)|[/tex]

Using a calculator:

[tex]A = \frac{1}{2}|-24|[/tex]

Remove absolute bracket

[tex]A = \frac{1}{2} * 24[/tex]

[tex]A = 12[/tex]

Answer:

3/20 1.5/10 15/100 15%

Step-by-step explanation:

done

Answer:

I think the answer is 15%

Step-by-step explanation:

15%of the marbles are blue.

[tex] \frac{3}{20} \binom{ \times }{ \times } \frac{5}{5} = \frac{15}{100} [/tex]

[tex] \frac{15}{100} = 15\%[/tex]

Answer:

30°

Step-by-step explanation:

[tex] \sin \theta = \frac{1}{2} \\ \\ \sin \theta = \sin 30\degree \\ \\ \theta = 30 \degree[/tex]

Answer:

answer is D

The difference of the two means is not significant, so the null hypothesis must be accepted.