Sarah earned $175 babysitting for her neighbors. If she saved 40% of her money how much did she save?

Answer:

7.74 cm2

Step-by-step explanation:

We need to find the area of both the square and the circle and then subtract the two.  Inscribed means draw within a figure so as to touch in as many places as possible.  So the circle is drawn inside the square.  The opposite is circumscribed, meaning drawn outside.

Asquare = s2 = 36 cm2 so the side is 6 cm

6 cm is also the diameter of the circle and thus the radius is 3 cm

A circle = πr2 = 3.14 * 32 = 28.28 cm2

The resulting difference is 7.74 cm2

Answer:

78 dollars

Step-by-step explanation:

Function c is defined by the equation c(n) = 50 + 4n. It gives the monthly cost, in dollars, of visiting a gym as a function of the number of visits, n. Find the value of c(7).

Given:

c(n) = 50 + 4n

Where,

c = monthly cost of visiting a gym

n = number of visits

Find the value of c(7)

That is, when n = 7

c(n) = 50 + 4n

c(7) = 50 + 4(7)

= 50 + 28

= 78

c(7) = 78 dollars

Answer:

148692/12

Step-by-step explanation:

12391

Answer:

x=6

Step-by-step explanation:

according to the question :-

(x+54)+5x=90

x+54+5x=90

6x+54=90

6x=90-54

6x=36

x=36/6

x=6

Answer:

10-35-45 and 5-17.5-22.5

Step-by-step explanation:

Answer:

Step-by-step explanation:

Well I'd need to see it but you can figure it out on your own. If there are 5 equal spots then the chance of one landing is 1/5 or otherwise known as 20% now, it's essentially the same if the spots are even, so figure it out depending on what the number of spots is.

Answer:

heres your answer

Step-by-step explanation:

Answer:

A. 24

Step-by-step explanation:

n Over 54 EndFraction = StartFraction 4 Over 9 EndFraction

n/54 = 4/9

Cross product

n * 9 = 54 * 4

9n = 216

n = 216/9

n = 24

A. 24

Check:

n/54 = 4/9

24 / 54

Divide through by 6

= 4/9

Answer:

The lines are perpendicular.

Step-by-step explanation:

If the lines are parallel, then the slopes are equal

If the lines are perpendicular, then the slopes are negative reciprocals

If neither of the above occur, then the lines are neither parallel or perpendicular.

y = 2x + 3  is in slope-intercept form, so the slope = 2

2y + x = 6

Solve for y:    2y = -x + 6

                        y = -1/2(x) + 3    so the slope = -1/2

2 and -1/2 are negative reciprocals, so the lines are perpendicular.

Note:  Negative reciprocals have a product of -1.  2(-1/2) = -1

Step-by-step explanation:

5(2–m)-3(4 – 2m) = 20

10-5m-12+6m=20

m=22

hope it helps

answer

m =22

solution

5(2-m)-3(4-2m)=20

10-5m-12 +6m=20

-2+m =20

m= 20+2

m =22

Answer:

relationship between perpendicular and base is given by tan angle

tanx°=p/b

tanx°=45/30

x°=tan-¹(45/30)=56.30=56

Answer:

0.03

Step-by-step explanation:

In given triangle,

perpendicular(p)=45

base(b)=30

x=?

We know,

tanx = p/b

or, tanx = 45/30

or, tanx = 3/2

or, x = tan-1(9/7)

or, x = 56.3099324740202 i.e. 56 approximately

Answer:

Step-by-step explanation:

This is the way I understand the question.  I hope it makes sense.

    n

     ∑ (P + 78n)                P = the initial depost which is 758

   n = 0

     so when n = 0       the sum equals P   or  758        because 78(0)  =  0

     so when n = 1       the sum equals P+78(1)       =     758 + 78     =  836

     so when n = 2       the sum equals P+78(2)     =     758 + 156    =  914

Answer:

792in

Step-by-step explanation:

LxW

=24x7

=168

bxb/2 x H

=24x13/2

=156x4

=624

T= 624+168

=792in

Answer:

691

Step-by-step explanation:

Step-by-step explanation:

Answer:

one hundred billion

Step-by-step explanation:

10^6 x 10^5 = 10^11

10^11 = 100,000,000,000 or  one hundred billion

I hope that's what you meant ^-^

Here is my answer. I hope this is helpful.

Answer:

Let total non-fiction books = 3x

And total fiction books = 5x

After reading 6 non-fiction books, remaining non-fiction books = 3x-6

After reading 13 fiction books, total fiction books remaining fiction books = 5x-13

(3x-6)/(5x-13) = 3/4

Solving for x, we get x = 5

So total non-fiction books = 15 and fiction books=25

So total number of books bought = 40

Answer:

Step-by-step explanation:

It would have to be something that when you take the fourth root of something, you would get 3

The way to find it is just raise 3 to the 4th power.

3^4 = 3 * 3 * 3 * 3 = 9 * 9 = 81

c  = 81

Answer:

x = 16

Step-by-step explanation:

(x +4) : (x +12) ::  (x-1)(x +5)

As they are in proportion,

Product of means = Product of extremes

(x + 4)* (x +5) = (x + 12)(x - 1)   {Use FOIL method}

x*x +x*5 +4*x + 4*5 = x *x + x*(-1) +12*x + 12*(-1)

x² + 5x + 4x + 20 = x² - x +12x - 12            {Now combine like terms}

 x² + 9x + 20  = x² + 11x -12

x² + 9x +20 - x² - 11x = -12

x² - x² + 9x - 11x     = -12 - 20          

    0   - 2x              = - 32

                       -2x = -32          {Divide both sides by -2}

                           x = -32/-2

                          x = 16

Answer:

Decimal form:0.23529411764

Fraction form:

Step-by-step explanation:As a decimal fraction:

23529411764/100000000000

The Greatest Common Factor

of 23529411764 and 100000000000 is:4

Simplify the fraction:

23529411764 / 4

100000000000 / 4

Simplified:

5882352941/25000000000

Answer:

D

Step-by-step explanation:

I had the same question and I got this right

Christopher is solving a system of equations that has one solution and can be seen in Option C.

A system of equations is two or more equations that can be solved together to get a unique solution. In this situation, the power of the equation must be in one degree.

A quadratic equation is the second-order degree algebraic expression in a variable.

s(x) = 2x42 -5 and t(x) = -x +31+2

However, if their power is not in one degree, the quadratic equation produces two solutions.

From the given options, we can see that only option c is not a quadratic equation, Hence, it is the right answer.

Learn more about systems of equations here;

brainly.com/question/14323743

Answer:

x = 9.83

Step-by-step explanation:

Taking 55 as the reference angle,

hypotenuse (h) = 12

perpendicular (p) = x

Sin 55 = p/h

Sin 55 = x / 12

x = Sin55 x 12

x = 9.83

Answer:

No

Step-by-step explanation:

There is no numerator, no denominator, no division symbol because it is not a legal fraction. The denominator can never be zero in any fraction.

Answer:

Step-by-step explanation:

1st Δ = 35°

2nd Δ = 90° ...... ( right Δ triangle )

3rd Δ = let x

35° + 90° + x = 180°

125° + x = 180°

x = 180° - 125°

x = 55°

Answer:

B

Step-by-step explanation:

the gcf of 42 is 1,2,3,6,7,21,42

then we find the number when we add give 13 is 6and 7

x^2+13x+42

x^2+6x+7x+42

x(x+6)+7(x+6)

(x+6)(x+7)