Q11. Helen invested £6000 for n years in a savings account. She got 3% compound interest each year. At the end of n years Helen had £7379.24 in her savings account. Work out the value of n. You must show your working.​

Answers

Answer 1

Answer: 100/103, 184481/150000

Step-by-step explanation:


Related Questions

Grace biked for 8 miles in 1 hour on Monday. She covered 18 miles in 2 hours the next day. On which day did Grace bike at a faster pace? ​

Answers

Solution:

Note that:

[tex]Speed = \frac{Distance}{Time}[/tex]

Find the speed of her bike of both the days and compare.

Speed on Monday = 8 miles/1 hour = 8 m/hSpeed on the next day = 18 miles/2 hours = 9 m/h

This means that:

=> 9 m/h > 8 m/h

Hence, the day after Monday is the day, she rode her bike faster than on Monday.

Answer:

The next day

Step-by-step explanation:

she covered 8 miles in 1 hour on Monday but on tuesday she covered 9 miles in 1 hour so she biked faster the next day.

Help!!! ASAP!!!!



Please help me!!!

No wrong answers!!!

Answers

Answer:

*

Step-by-step explanation:

Pattern A: is adding 2 dots each time

Pattern B: is going up 1,2,3,4 (adding that amount each time)

Pattern C: Times by 3 each time

In right triangle ABC, sin B = 2x+0.42 B=2x+0.42 and cos C = 9x+0.84 C=9x+0.84. Solve for xx.

Answers

Answer:

-0.06

Step-by-step explanation:

50 pht helppppppppppppppppppppppppppppppppppppppp

Answers

Answer:

$1620

Step-by-step explanation:

The area of the lawn is a trapezoid.

Area of a trapezoid = [tex]\dfrac12(a+b)h[/tex]

where a and b are the parallel sides (bases) and h is the height

Therefore,

[tex]area=\dfrac12(15+12) \times 10 = 135 \ m^2[/tex]

If the price of sod is $12 per square meter, then

total cost = 135 x 12 = $1620

Answer:

Area=1/2(Sum of parallel sides)×Height

Area:-

[tex]\\ \tt\hookrightarrow \dfrac{1}{2}(15+12)\times 10=1/2(27)(10)=13.5(10)=135m^2[/tex]

Now rate of cost is $12

Total cost=135(12)=1620$


Which of the following is the graph of y = X + 4

Answers

Answer:

x = – 4

(i just use app sorry if I'm wrong)

Help plsss!?!?!??!?!??>...................................

Answers

Answer:

A,B,D

Step-by-step explanation:

case A) If the price is marked down by  percent, the new price will be

we know that

If the price is marked down by 10  percent

then the new price will be

10%= 10/100=0.10

(1 - 0.10) *$28= 0.90 * $28

=$25.20

therefore The statement case A) is True

case B) If the price is marked down by 25 percent, the new price will be $21

we know that

If the price is marked down by 25 percent

then the new price will be

25%=25/100=0.25

(1-0.25)* $28=0.75*$28

=$21

therefore The statement case B) is True

case C) If the price is marked down by 50 percent, the new price will be $19 we know that

If the price is marked down by 50 percent

then the new price will be

50%=50/100=0.50

(1-0.50)*$28= 0.50*$28

=14

therefore The statement case C) is False

case D) If the price is marked down by  35 percent, the new price will be $18.20

we know that

If the price is marked down by 35 percent

then the new price will be

35%= 35/100=0.35

(1-0.35)* $28=0.65*$28

=18.20

therefore The statement case D) is True

case E) If the price is marked down by 40 percent, the new price will be $29.80 we know that

If the price is marked down by 40 percent

then the new price will be

40%=40/100=0.40

(1-0.40)*$28= 0.60*$28

=$16.80

therefore The statement case E) is False

What do i type as an answer?

Answers

Answer:

g.c.f = 3g²

Step-by-step explanation:

Breakdown:

3g² → 3 * g * g

9g³ → 3 * 3 * g * g * g

3 * g * g is the common between them.

Therefore the gcf is 3g²

okokokokokokokokookokokok

Answers

Step-by-step explanation:

5(y+52) = -13

5y + 260 = -13

5y = -13 -260

y = -273 ÷ 5

y = -54.6

i rented a gym for $150.00 for 30 students. another time i rented the gym for $270.00 for 70 students. charge for 50 students

Answers

Answer:

y = 3x + 60

Step-by-step explanation:

Solve for x
1,000 = 58.3x+227.9

Answers

subtract 227.9 from both sides to get 772.1
then divide both sides by 58.3 to get 13.2435678
then round to get 13.24

Answer:

x=13.243568

Step-by-step explanation:

1000=58.3x+227.9

Step 1: Flip the equation.

58.3x+227.9=1000

Step 2: Subtract 227.9 from both sides.

58.3x+227.9=1000

         −227.9   −227.9

58.3x=772.1

Step 3: Divide both sides by 58.3

58.3x/58.3 = 772.1/58.3

x=13.243568

Help me with this please?

Answers

Answer:

[tex]\sqrt{51}[/tex] or 7.14

Step-by-step explanation:

Using the Pythagoras theorem, we can conclude the formula that we are going to use here is [tex]a^{2}+b^{2} = c^{2}[/tex]

As we can see, this is a right triangle given that it has the square in the corner there. With this information, we can conclude that the longest side is 10, making it the hypotenuse or [tex]c[/tex]

Now we need to find [tex]b[/tex] in the formula of [tex]a^{2}+b^{2} = c^{2}[/tex] making the equation [tex]b^{2} = c^{2} - a^{2}[/tex] or [tex]b = \sqrt{ c^{2} - a^{2}}[/tex]

Given the provided information, this would be [tex]b^{2} = 10^{2} - 7^{2}[/tex] or [tex]b = \sqrt{ 10^{2} - 7^{2}}[/tex]

Simplifying it would be [tex]b = \sqrt{ 100-49[/tex] = [tex]\sqrt{51}[/tex]

The radical form would be [tex]\sqrt{51}[/tex]

While it's integer would be 7.14

Hope this helps!

Answer:

Step-by-step explanation:

Use Pythagorean theorem,

Let the third side =x

base² + altitude² = hypotenuse²

7² + x² = 10²

49 + x² = 100

       x² = 100 - 49

      x² = 51

     x = √51

Figure PQRS is a rectangle. Which statement in not necessarily true:

A: PQ is parallel to RS
B: PQ is congruent to RS
C: M D: PQ is congruent to QR

Answers

Answer:

D: PQ is congruent to QR

Step-by-step explanation:

In a rectangle, there are a few statements that are always true. Opposite sides are congruent and parallel and all angles meet at 90 degrees. However, adjacent sides (sides that are touching/share a vertex) are not necessarily congruent. They can be; if they are then that rectangle is a square. Nevertheless, if adjacent sides are not congruent, then it is still a rectangle, so long as they meet at a right angle.

Answer: D

Step-by-step explanation:

The radio of boys to girls at mathematics high school is 4:3 if there are 1526 students at the school, how many are girls

Answers

Answer:

654 girls

Step-by-step explanation:

sum the parts of the ratio , 4 + 3 = 7 parts

divide total by 7 to find the value of one part of the ratio

1526 ÷ 7 = 218 ← value of 1 part of the ratio , then

number of girls = 3 × 218 = 654

A cannonball is released at an angle of 20˚ at a velocity of 12m/s. Calculate the horizontal velocity of the object. What kinematic formula must be used to solve this problem?.

Answers

The horizontal velocity of the cannonball is released at an angle of 20˚ at a velocity of 12m/s is 11.276 m/s.

What is Velocity?

Velocity is the rate of change of position with respect to time. It is a scalar quantity.

We know that the velocity is a scalar quantity therefore, it can be divided into two components such that the first component is the vertical component which is equal to the (V sinθ), while the other component is the horizontal component(V cosθ), where V is the velocity and θ is the angle of the velocity from the positive x-axis.

Now, in order to calculate the horizontal velocity of the cannonball we can write,

[tex]\rm V_x = V\ Cos\theta[/tex]

[tex]V_x = 12 (Cos\ 20^o)\\\\V_x = 11.276\rm\ m/s[/tex]

Hence, the horizontal velocity of the cannonball is released at an angle of 20˚ at a velocity of 12m/s is 11.276 m/s.

Learn more about Velocity:

https://brainly.com/question/862972

I will give you 30points
y = x + 4
5x + 3y = -4
Help please system by substitution

And help with y = 2x and
-8x – 2y = 24

Answers

1)

y = x + 4

5x + 3y = -4

5x + 3(x + 4) = -4

5x + 3x + 12 = -4

8x + 12 = -4

8x = -4 -12

8x = -16

x = -2

substitute x into the equation

y = -2 + 4

y = 2

Answers : x = -2 , y = 2

Answer:

1) [tex]{y,x}={2,-2}[/tex]

2) [tex]{y,x} = {-4,-2}[/tex]

Step-by-step explanation:

1) [tex]y=x+4 \\ 5x+3y=-4[/tex] <---------- given linear equations

Equations Simplified or Rearranged :

[tex]y - x = 4 \\3y + 5x = -4[/tex]

Graphic Representation of the Equations : PICTURE #1

[tex]x + y = 4 \\5x + 3y = -4[/tex]

Solve by Substitution :

// Solve equation [1] for the variable  y

[tex][1] y = x + 4[/tex]

// Plug this in for variable  y  in equation [2]

[tex]3*(x +4) + 5x = -4 \\ [2] 8x = -16[/tex]

// Solve equation [2] for the variable  x

[tex]8x = - 16 x = - 2[/tex]

// By now we know this much :

[tex]y = x+4\\ x = -2[/tex]

// Use the  x  value to solve for  y

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

Solution :

[tex]{y,x} = {2,-2}[/tex]

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

2) [tex]y=2x \\-8x-2y=24[/tex] <----- linear equations given

Equations Simplified or Rearranged :

[tex]y - 2x = 0 \\ -2y - 8x = 24[/tex]

Graphic Representation of the Equations : PICTURE #2

[tex]-2x + y = 0 \\\\-8x - 2y = 24[/tex]

Solve by Substitution :

// Solve equation [1] for the variable  y

[tex][1] y = 2x[/tex]

// Plug this in for variable  y  in equation [2]

[tex][2] -2*(2x) - 8x = 24\\ [2] - 12x = 24[/tex]

// Solve equation [2] for the variable  x

[tex][2] 12x = - 24 [2] x = - 2[/tex]

// By now we know this much :

[tex]y = 2x \\ x = -2[/tex]

// Use the  x  value to solve for  y

[tex]y = 2(-2) = -4[/tex]

Solution :

[tex]{y,x} = {-4,-2}[/tex]

Directions: Simplify each term by factoring.

1. 3rs

2. 12xy

3. 5x2

4. 36x2

5. 25x2

6. 30x2

7. 5x3

8. 24y3

9. 9xy

10. 12x4

Answers

Answer/Step-by-step explanation:

[1] [tex]3rs = 3 * r *s[/tex]

[2] [tex]12xy = 2*2*3*x*y[/tex]

[3] [tex]5x^2=5*x*x[/tex]              

[4] [tex]36x^2=2*2*3*3*x*x[/tex]

[5] [tex]25^2=5*5*x*x[/tex]

[6] [tex]30x^2=2*3*5*x*x[/tex]

[7] [tex]5x^3=5*x*x*x[/tex]

[8] [tex]24y^3=2*2*2*3*y*y*y[/tex]

[9] [tex]9xy=3*3*x*y[/tex]

[10] [tex]12x^4=2*2*3*x*x*x*x[/tex]

Factoring means to factor a number means to break it up into numbers that can be multiplied together to get the original number.

[tex][RevyBreeze][/tex]

Answer:

[1] 3*r*s

[2] 12ry=2*2*x*y

[3]  5x2=5*x*x            

[4] 36x2=2*2*3*3*x*x

(5] 252=5*5*x*x

[6] 30x2=2*3*5*x*x

[7] 5x3=5*x*x*x

[8] 24y3=2*2*2*3*y*y*y

[9]9xy=3*3*x*y

[10] 12x4= 2*2*3*x*x*x*x

Step-by-step explanation:

What 8 letter word can have taken away and it still make a word .Take another letter away and it still make a word .Keep on doing that until you have one letter Left What is the word?

Answers

the word is “starting”
starting
staring
string
sting
sing
sin
in
i

Which of the following polynomials is in standard form?
O A. F(X= -3x4 - 1+6x2 +7x
B. F(x) = -3x4 +6x2 +7x-1
C. F(x) = -3x4 +6x2 - 1+7 x
OD. F(x) = 7x+6x2 - 1-3x4

Answers

Answer:the answer is d

Step-by-step explanation:

d is correct

Answer: is b

Step-by-step explanation:

“The points given in each table lie on a line. Find the slope of the line. Then graph the line”

Answers

Hey there here u go

the total weight of 3 puppies is 2 pounds 4 ounces. how much does puppy weight in ounces. convert to ounces

Answers

Answer:

60 ounces

Step-by-step explanation:

there are 16 ounces in a pound plus the extra 4 ounces times 3 is 60 ounces in total

Emma read the statement "the quotient of six and a number, x, is the same as negative two times the difference of x and 4. 5. " She translated it as shown below. 6 x = negative 2 x minus 4. 5 What errors did Emma make? Select two options. She should have used division to represent the quotient of six and x. She should not have included an equal sign. She should have used parentheses to show that Negative 2 is multiplied by (x minus 4. 5). She should have subtracted the difference (x minus 4. 5) from Negative 2. She should have used parentheses to show that Negative 2 is multiplied by (4. 5 minus x).

Answers

This is wrong because the difference of x and 4.5 that is (x- 4.5) is negative two times that is -2(x -4.5). Then the correct option is C.

What is a BODMAS rule?

BODMAS rule means for the Bracket, Order, Division, Multiplication, Addition, and Subtraction.

Emma read the statement "the quotient of six and a number, x, is the same as negative two times the difference of x and 4. 5. " She translated it as shown below.

[tex]\rm 6 x = -2 x - 4. 5[/tex]

This is wrong because the difference of x and 4.5 that is (x- 4.5) is negative two times that is -2(x -4.5).

Thus, She should have used parentheses to show that Negative 2 is multiplied by (x minus 4. 5). Then the correct option is C.

More about the BODMAS rule link is given below.

https://brainly.com/question/24383445

Order the steps to solve the equation log(x2 − 15) = log(2x) form 1 to 5.

Answers

The order of the steps to solve the provided logarithmic equation is arranged as,

[tex](x^2 - 15) =(2x)[/tex]

[tex]x^2 +2x-15=0[/tex]

[tex](x-5)(x+3)=0[/tex]

[tex]x-5=0,x+3=0[/tex]

Potential solution are -3 and 5.

What is exponent of log rule?

The exponent of the log rule says that the raising a logarithm with a number to its base is equal to the number.

When the base is common ion equality equation, then the two log values can be compares using exponent rule of logarithm.

The given logarithmic equation in the problem is,

[tex]\log(x^2 - 15) = \log(2x)[/tex]

The order of solution of the above expression,

Step 1,

As the base is common, then the two log values can be compares using  exponent rule of logarithm.

[tex](x^2 - 15) =(2x)[/tex]

Step 2,

Bring all the terms, one side of the expression as,

[tex]x^2 +2x-15=0[/tex]

Step 3,

Find the factors of the above quadratic equation using the split the middle term method as,

[tex]x^2 -5x+3x-15=0\\x(x-5)+3(x-5)=0\\(x-5)(x+3)=0[/tex]

Step 4,

Equate the factors to the zero to find out the values of x,

[tex]x-5=0,x+3=0[/tex]

Step 5,

The potential solution are,

[tex]x=5,-3[/tex]

Thus, the order of the steps to solve the provided logarithmic equation is arranged as,

[tex](x^2 - 15) =(2x)[/tex]

[tex]x^2 +2x-15=0[/tex]

[tex](x-5)(x+3)=0[/tex]

[tex]x-5=0,x+3=0[/tex]

Potential solution are -3 and 5.

Learn more about the rules of logarithmic function here;

https://brainly.com/question/13473114

I NEED HELP ON NUMBER 11 ASAP!!

Answers

Answer:

4x+2

and 22

Step-by-step explanation:

2x-5+6+2x-5+6=4x+2

if x=5, so perimeter 4(5)+2=20+2=22

20x + 6 What is the constant?

Answers

Answer:

Step-by-step explanation:

The constant is 6

Hope this helps!

The constant is 6 because it is a number with no variable next to it.

can anyone help me to solve this question

Answers

Answer:

D.

Step-by-step explanation:

Use the TOA from SOH CAH TOA.

Your tan(C) is opposite (12) divided by adjacent (5).

Write the expression below in its simplest form.
(3d+5)+(d-2)

Answers

Answer:

4d+3

Step-by-step explanation:

Combine the like terms 3d + d which is 4d and 5 - 2 is 3, keep the addition symbol, and you will get 4d+3

The answer is 4d+3

(3d+5)(d-2)

you add 3d+1d=4d

You now subtract 5-2=3 (since the higher absolute value is +5, your answer will be +3, not -3)

=4d+3 :)

ms.lopez can do 25 push ups. ms. red can do twice as many push ups as ms.lopez. how many more push ups can ms.red do than ms.lopez

Answers

Answer:

Ms. Red can do 25 more push ups than Ms. Lopez.

Step-by-step explanation:

25 x 2 = 50.

50 is how many Ms. Red can do.

50-25= 25.

What is the simplified form of 4 X 62 = 3 + 7?

Answers

10.....

thats all you can simplify out of it

Answer: In terms, it would be false when solved it 248 = 10

Step-by-step explanation:

When you multiply 62 and 4 you will get 248

When you add 3 and 7 you will get 10

Obviously [tex]248\neq 10[/tex] so this equation can't be simplified and it's false


Help meeeee
The price of a new car is $30,000. If the sales tax is 6.5%, what is the total cost for the car, including tax?

Answers

Answer:

$31950

Step-by-step explanation:

We multiply 30,000 by .065 to get 1950. We ad them together to get $31,950. :)

Answer:

$31,950 dollars

Step-by-step explanation:

Given the following question:
Initial price of the car is $30,000...
The car has an increase tax of 6.5% (which means 6.5% of the initial price of the car is the sales tax.)

In order to find the total cost of the car, we need to find 6.5% of $30,000 and then add that number to the initial price to have the answer.

[tex]\frac{6.5\times30000}{100} =6.5\times30000=19500\div100=1950[/tex]
[tex]30000+1950=31950[/tex]
[tex]t=31950[/tex]

Therefore, the car has the total cost (including tax) of "$31,950 dollars."

Hope this helps.

System of Linear Equations - Elimination


Given that x and y are real numbers satisfying the equations 32 – 2y = 22 and 7x + 3y =
105, what is the value of x+y




I will mark for brainliest and 100 point

Answers

Answer:

the explanation is in the diagram

if you noticed I multiplied the second equation all through by minus so the positive 9 turned negative when multiplied by minus so negative 14 + negative 9 gives negative 23

Step-by-step explanation:

32-2y=22

y=5 because 32 minus 10 is 22 and 2y is 10

7x + 3y= 105

same as

7x + 15 = 105

7x = 90

X = 90/7

X = 12.8571429

X+y= 17.8571429

brainliest?

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