Sumita buys a set of earphones for £13.42.
She pays with £15.
How much change does she get?
Give your answer in £.

Answer:

700 turns

Step-by-step explanation:

hey

______________

in 1 round distance covered = circumference

•radius = 35/100 m

•circumference = 2πr

=2×22/7×35/100

=44×5/100

= 220/100 m

220/100 m covered in 1 turn

1540m covered in 1540×100/220 = 700

hence ans is 700 turns

hope helped

_________________ PLEASE GIVE BRAINLIEST

Answer:

Approximately 700 times

Answer:

Wrong I think... it would be x=1/5

Step-by-step explanation:

-3x +2x is -1x but the rest seems correct.

Answer:

N-K = 6-3 which equals 3.

Step-by-step explanation:

Answer:

13×10/5×3= 130/15= 26/3=8.6

Step-by-step explanation:

13 multiplies 10 and 5 multiplies 3 after it gets divided

The given function for the height of the firework is a quadratic function

1. Time at which the firework reaches the maximum height is 1 seconds

2. The maximum height of the firework, is 25 yards

3. Time after which the firework will fall to the ground is (1 + √5) seconds

Reason:

The given function that represents the height of the fireworks with time is

presented as follows;

h(t) = -5·t² + 10·t + 20

1. The time at which the firework reaches its maximum height is given by

the maximum point of the given function as follows;

The x-value of the maximum point of a quadratic function is [tex]x = \dfrac{b}{2 \cdot a}[/tex]

Where;

a, and b, are the coefficient of x² and x, in the general form of a quadratic function f(x) = a·x² + b·x + c

By comparison, we have;

[tex]t = -\dfrac{10}{2 \times (-5)} = 1[/tex]

2. The maximum height is given by plugging in the value of t, at the maximum point into the given function as follows;

h(1) = -5×1² + 10×1 + 20 = 25

3 The time at which the firework will fall to the ground, is given by the zero of the function as follows;

When the firework falls to the ground, h(t) = 0 =  -5·t² + 10·t + 20

Dividing both sides by (-5) gives;

[tex]\dfrac{0}{-5} = \dfrac{ -5 \cdot t^2 + 10 \cdot t + 20}{-5} = t^2 - 2 \cdot t - 4[/tex]

t² - 2·t - 4 = 0

By the quadratic formula [tex]x = \dfrac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}[/tex], we get;

[tex]t = \dfrac{2\pm \sqrt{(-2)^{2}-4\times 1\times (-4)}}{2\times 1} = \dfrac{2\pm \sqrt{20}}{2\times 1} = \dfrac{2\pm 2 \times \sqrt{5}}{2\times 1} = 1 \pm \sqrt{5}[/tex]

Therefore;

Learn more here:

https://brainly.com/question/20628403

Answer:

$927.113

Step-by-step explanation:

50-7=43

43×18.94=814.42

100-15=85

100%=18.94

what about 85%

85×18.94=1609.9÷100=16.099

16.099×7=112.693

814.42+112.693= 927.113

Answer:

90/91 ans

Step-by-step explanation:

=6×2+1/2 -7/8÷(5×16+11)/16

=12+1/2-7/8÷91/16

=13×8-7×2/16÷91/16

=90/91

Answer:

All are functions but the 1st one

Step-by-step explanation:

generally, if you have an equation that will repeat x values, it's not a function. The first one has an infinite number of x values

Answer:

(x - 2) • (x - 4) • (x - 8)

Step-by-step explanation:

The first term is,  x2  its coefficient is  1 .

The middle term is,  -6x  its coefficient is  -6 .

The last term, "the constant", is  +8  

Step-1 : Multiply the coefficient of the first term by the constant   1 • 8 = 8  

Step-2 : Find two factors of  8  whose sum equals the coefficient of the middle term, which is   -6 .

     -8    +    -1    =    -9  

     -4    +    -2    =    -6    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -4  and  -2  

                    x2 - 4x - 2x - 8

Step-4 : Add up the first 2 terms, pulling out like factors :

                   x • (x-4)

             Add up the last 2 terms, pulling out common factors :

                   2 • (x-4)

Step-5 : Add up the four terms of step 4 :

                   (x-2)  •  (x-4)

            Which is the desired factorization

Answer:

its B mark me brainliest plz

Answer:

Note that the ratio 12 to 3 is said to be equivalent to the ratio 4 to 1, that is 12:3 = 4:1.

Answer:

12:3 = 4.1

Step-by-step explanation:

12 to 3 is equal or equivalent to the ratio to 4 and 1 so the answer is 12:3 = 4.1

Answer:

A=2 B=1

Step-by-step explanation:

B is distributive because you have to foil the x out of the parenthesis

A is  because when three or more numbers are added (or multiplied), the sum (or the product) is the same regardless of the grouping of the addends.

Answer:

The Publisher published most books (963258) in the year 2003. And the least books (374569) in the year 2002.

Step-by-step explanatio

Answer:

A

Step-by-step explanation:

ok so we know the y is -5 (where the line crosses the y axis) so we can eliminate B & D. the answer is not C because the slope would be less steep

Answer:

1/3

Step-by-step explanation:

1) Simplify 3/4t to 3t/4

3t/4 = 1/4

2) Multiply both sides by 4

3t = 1/4 x 4

3) Cancel 4

3t = 1

4) Divide both sides by 3

t = 1/3

By looking at the formula that the rule is the coefficient of x times z to the power plus 2

so we can write the following geometric sequence

-x⁷,-2x¹²,-4x¹⁷,-8x²²,-16x²⁷.-32x⁵²....

Answer:

117°

Step-by-step explanation:

The value of m∠3 and m∠5 will add up to 180, so you can do 180 - 63 to find the answer.

Dilating a trapezoid involves changing its size.

The measure of side OL is 8

The given parameters are:

[tex]\mathbf{O'L' = 6}[/tex]

[tex]\mathbf{k = \frac 34}[/tex]

Side length O'L' is calculated using:

[tex]\mathbf{O'L' = OL \times k}[/tex]

Make OL the subject

[tex]\mathbf{OL = \frac{O'L'}{k}}[/tex]

So, we have:

[tex]\mathbf{OL = \frac{6}{3/4}}[/tex]

[tex]\mathbf{OL = 8}[/tex]

Hence, the measure of side OL is 8

Read more about dilations at:

https://brainly.com/question/13176891

Answer:

Step-by-step explanation:

Answer:

343

Step-by-step explanation:

Therefore, the answer is 343.

7^3 means 7 cubed, or 7*7*7.

7 times 7 is 49. 49 times 7 is 343.

Hope this helps! :)

Step-by-step explanation:

you can subtract the spinner a from spinner b and then find the probability

Answer:

Step-by-step explanation:

Opposite angles are non-adjacent angles formed by two intersecting lines. Opposite angles are congruent (equal in measure).

3x = 2x + 16

x = 16

----------------

check

3 * 16 = 2 * 16 + 16

48 = 48

the answer is good

Answer:

x=16

Step-by-step explanation:

Since both angles are vertically opposite, there fore they equal each other.

2x + 16 = 3x

Subtract 3x from both sides

2x - 3x + 16 = 3x - 3x

-x + 16 = 0

-x = 0-16

-x = -16 (Multiply both sides by -1)

x = 16

---------

3x 16 = 48

2*16 + 16 = 48

Answer:

y = 90

x = 64

Step-by-step explanation:

y is 90 because of right angle

if add 26 + 90 = 116 -> 180 (angle of straight line) - 116 = 64 which is angle of angle to left of y and therefore x bc opposite angles equal each other

or even if you saw the line that includes x, 26, and y, x is still 64

also, the other angle that is blank should be 26+y (if our calculations are correct) so it would be 116 -> and if we add up everything we should get 360 so, x/64 + 26 + y/90 + blank angle/64 + 116 = 360 -> all correct!

Answer:

In the picture

Step-by-step explanation:

Hey again ! If you have any question feel free to ask !!

Question 4:

Solve for the variable N in [tex]55+8n=4n+107[/tex]

Answer:

[tex]n=13[/tex]

Step-by-step explanation:

1. Subtract [tex]4n+107[/tex] from both sides; [tex]4x-52[/tex]

2. Separate variable [tex]n[/tex] by adding [tex]52[/tex] to both sides; [tex]4n=52[/tex]

3. Simplify equation by dividing by [tex]4[/tex] on both sides; [tex]=13[/tex]

Question 5:

Solve for the variable N in [tex]6-6x=5x-9x-2[/tex]

Answer:

[tex]x=4[/tex]

Step-by-step explanation:

1. Subtract [tex]5x-9x-2[/tex] from both sides; [tex]8-2x[/tex]

2. Separate variable [tex]x[/tex] by adding [tex]2x[/tex] to both sides; [tex]8=2x[/tex]

3. Simplify equation by dividing by [tex]2[/tex] on both sides; [tex]4=x[/tex]

Answer:

no solution

Step-by-step explanation:

x+2=x+8

Subtract x from each side

x+2-x = x+8-x

2 = 8

This is never true so there is no solution

Answer:

x+2=x+8

x+2-2=x+8-2

x=x+6

x-x=x+6-x

0=6

Step-by-step explanation:

Answer:

subtract or add 4 to -12 to find the answer

Answer:

z = - 16 , - 8

Step-by-step explanation:

4 units from - 12 is - 16 or - 8 , since

| - 16 - (- 12) | = | - 16 + 12 | = | - 4 | = 4

| - 8 - (- 12) | = | - 8 + 12 | = | 4 | = 4

Answer:

ya

Step-by-step explanation: