Maggies brother is 4 years younger than three times her age the sum of there ages is 28 how old is maggie

Answer and Step-by-step explanation:

When trying to figure this out, we know that the numbers have to be one after the other, like 1, 2, 3, 4, or 55. 56, 57, 58. The last digit in the numbers also have to add to 6.

The answer is:

100 + 101 + 102 + 103

It adds up to 406, and the integers are consecutive.

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I hope this helps!

Answer:

Step-by-step explanation:

let the numbers be n,n+1,n+2,n+3

n+n+1+n+2+n+3=406

4n+6=406

4n=406-6=400

n=400/4=100

then the numbers are

100,100+1,100+2,100+3

or

100,101,102,103

Answer:

1 65/76

Step-by-step explanation:

Answer:

H = (n/4v) - c

Step-by-step explanation:

I ASSUME the equation is

v = n/(4(c + H))

multiply by (c + H)

v(c + H) = n/4

divide by v

c + H = n/4v

subtract c

H = (n/4v) - c

If the equation is v = (n/4)(c + H)

Then

H = (4v/n) - c

Step-by-step explanation:

if AD =17,then Dc is also 17 because from the diagram,it is given that AD=DC.

And because AD and DC are equal,it means AC = AD +DC,therefore AC = 17+17,AC =34

AC=2y-6

therefore

34=2y-6

28=2y and y=14

Answer:

Step-by-step explanation:

Answer:

0.006 is the larger decimal

Answer:

0.006 is the right answer

Step-by-step explanation:

Since (0.006) has the least amount of zeros after the decimal, it would be larger than the other decimal that has more zeros after the decimal.

Answer:

x = 4/7

Step-by-step explanation:

x^3 = 64/ 343 // - 64/ 343

x^3 - ( 64/ 343 ) = 0

x^3 - 64 / 343 = 0

1*x^3 = 64/ 343 // : 1

x^3 = 64/ 343

x^3 = 64/ 343 // ^ 1/3

x = 4/ 7

Answer:

68%

Step-by-step explanation:

please mark me brainliest

Answer: C

Hello,

Step-by-step explanation:

[tex]\overline{x}=50,\ \sigma=3,\ z=\dfrac{x-50}{3} \\\\p(47\leq x \leq 53)=p(\dfrac{47-50}{3} \leq z \leq \dfrac{53-50}{3} )=p(-1\leq z \leq 1)\\\\p(z\leq 1)=0.8413\ (in\ table)\\\\p(z\geq 1)=p(z\leq 1)=1-0.8413=0.1587\\\\p(-1\leq z \leq 1)=0.8413-01587=0.6826\\[/tex]

p≈68%

Answer C

Answer:b

Step-by-step explanation:

The area of the quadrilateral with the given coordinates is 27 square units.

The coordinates of the quadrilateral are A(0, 4), B(5, 2), C(3, -3) and D(-2, -1).

We need to find the area of the quadrilateral with the given coordinates.

The formula to find the area of the quadrilateral with coordinates ( x₀, y₀ ), ( x₁, y₁ ), ( x₂, y₂ ), ( x₃, y₃ ) is (1/2) × ( x₀y₁ - x₁y₀ + x₁y₂ - x₂y₁ + x₂y₃ - x₃y₂ + x₃y₀ - x₀y₃ ).

Now, Area=1/2×(0×2-5×4+5×(-3)-3×2+3×(-1)-(-2)×(-3)+(-2)×4-0×(-1))

=1/2×|(-20-15-6-3-6-8)|=27 square units.

Therefore, the area of the quadrilateral with the given coordinates is 27 square units.

To learn more about the area of the quadrilateral visit:

https://brainly.com/question/20518556.

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Answer:

3x 2 +8x−3

Step-by-step explanation:

Answer:

3x^2+8x-3

Step-by-step explanation:

That should be the right answer but don't quote me on it.

Answer:

The monthly payments will be $180.

Step-by-step explanation:

You only have to divide $7560 by the 42 months Mark wished to pay the loan off in.

Answer:

r = 9

Step-by-step explanation:

These are vertical angles, therefore, the measurements is the same. Set the two measurements equal to each other:

7r - 5 = 6r + 4

Isolate the variable, r. Note the equal sign, what you do to one side, you do to the other. Add 5 and subtract 6r from both sides of the equation:

7r (-6r) - 5 (+5) = 6r (-6r) + 4 (+5)

7r - 6r = 4 + 5

Simplify:

7r - 6r = 4 + 5

r = 9

9 is your value for r.

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Answer:

c is the answer

First:

F=m.a

=4*7

=28N

Second:

F=m.a

28=m.2. (force is constant,so F=28N)

28/2=m

m=14kg.

Answer:

First:

F=m.a

=4*7

=28N

Second:

F=m.a

28=m.2. (force is constant,so F=28N)

28/2=m

m=14kg.

Answer:

-7/19

Step-by-step explanation:

First simplify the fractions. 18/-57= -6/19.

-6/19x7/6=-42/114

-42/114=-7/19

I hope this helps! I also put it into an online calculator to make sure it is right and it is!

Answer:

a variable

Step-by-step explanation:

The answer is a variable because it's a letter that stands in place of a number

Answer:

simply refers to the type of Latin and Arabic characters representing the numbers 0 - 9, the letters A - Z

Answer:

bbbbbbbbbbbbbbbbbbbbb

From the density in the diagram, the probability that X is between 0.5 and 1.5 is 1/2. Option B

The probability density function of a random variable X is a function that gives the probability that X will take on a certain value.

In this case, the probability density function is a line segment that goes from 0 to 1.

The probability that X is between 0.5 and 1.5 is the area under the probability density function between 0.5 and 1.5.

This area is equal to the length of the line segment between 0.5 and 1.5, which is 1.

Therefore, the probability that X is between 0.5 and 1.5 is 1/2. Option B

Find more exercises on probability density;

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Full question

The Probability Density Of A Random Variable X Is Given In The Following Figure.

.........................................................

|........................................................|

0                       1                             2

                         x

From this density, the probability that X is between 0.5 and 1.5 is:

a. 1/3,

b. 1/2.

c. 3/4

d. 1.

Answer:

230[tex]cm^{2}[/tex]

Step-by-step explanation:

17*10=170

12*10*1/2=60

170+60=230

In order for two complex numbers to be equal, their real and imaginary parts must match up.

So if

x ² + 2xy + i (y - 1) = x ² - 2x + 2y - i (x + y)

then

x ² + 2xy = x ² - 2x + 2y

and

y - 1 = -x - y

Solve for x and y : the first equation gives

x ² + 2xy = x ² - 2x + 2y

2xy = 2y - 2x

and the second gives

y - 1 = -x - y

2y = 1 - x

Substitute this into the first equation:

x (1 - x) = (1 - x) - 2x

x - x ² = 1 - 3x

x ² - 4x + 1 = 0

x = 2 ± √3

Then

x = 2 - √3   ==>   y = (-1 + √3)/2

x = 2 + √3   ==>   y = (-1 - √3)/2

both of which make both sides of the equation (2 - √3) + i (√3 - 3)/2.

Answer:

2.5

Step-by-step explanation:

that was so hard to figure out tbh

Step-by-step explanation:

it's answer is I think 5000

f(x) = 4x

g(x) =

[tex] \sqrt{x^{2} \: - \: 1 } [/tex]

h(x) =

[tex] \sqrt{16x \: - \: 1} [/tex]

We want to check if h(x) = g(f(x))

So g(f(x)) =

[tex] \sqrt{(4x) {}^{2} - \: 1} [/tex]

Simplified;

g(f(x)) =

[tex] \sqrt{16x {}^{2} \: - \: 1 } [/tex]

But h(x) =

[tex] \sqrt{16x \: - \: 1} [/tex]

Hence g(f(x)) is not equal to h(x)

Answer:

-15

Step-by-step explanation:

-15 because it's 15 units left from the origin or 0 while 10 is 10 units right from the origin or 0

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The point is located 1/8 of the distance from 0 to 1. When the space between 0 and 1 is divided into 8 equal parts, 1/8 is located after the first space, nearest zero.

Answer:

a is the answer I'm 1000% sure

9514 1404 393

Answer:

  $2089

Step-by-step explanation:

One way to do this rounding is to add $0.50, then drop all of the fractional digits.

  $2088.523125 + 0.50 = $2089.023125

Dropping all of the digits right of the decimal point gives $2089.

Answer:

y = -1/4x + 1/4

Step-by-step explanation:

y = -1/4x + b

-1 = -1/4(5) + b

-1 = -5/4 + b

b = 1/4

Answer:

3:1

Step-by-step explanation:

The Robins' numbers are 3 times the cardinal's numbers, so therefore when simplified, the ratio is 3 to 1, 3:1, or 3/1.