The perimeter of a rectangle is 53 inches. The length of the rectangle is 5 less than twice it’s width. Solve the system using 2 equations.

Answer:

5/3

Step-by-step explanation:

30/18=5/3

Answer:

40x20+4x3+

2347

32

Step-by-step explanation:

Let's simplify step-by-step.

4x3+12+14+40x20−32+

43

32

+90−12

=4x3+12+14+40x20+−32+

43

32

+90+−12

Combine Like Terms:

=4x3+12+14+40x20+−32+

43

32

+90+−12

=(40x20)+(4x3)+(12+14+−32+

43

32

+90+−12)

=40x20+4x3+

2347

32

Answer:

Step-by-step explanation:

=40x^20+4x^3+2347/32

Hope this helps mark me as brainiest pls

Answer:

f = 4 e = -2

Step-by-step explanation:

e - 2f = -10

8e + 4f = 0

Solve by substitution

8e + 4f = 0

8e = -4f

e = -0.5f

Substitute into e - 2f = -10

-0.5f - 2f = -10

-2.5f = -10

2.5f = 10

f = 4

Substitute into 8e + 4f = 0

8e + 16 = 0

8e = -16

e = -2

Answer:

e=-2, f=4. (-2, 4).

Step-by-step explanation:

e-2f=-10

8e+4f=0

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

e=-10+2f

e=2f-10

8(2f-10)+4f=0

16f-80+4f=0

20f=0+80

20f=80

f=80/20

f=4

e-2(4)=-10

e-8=-10

e=-10+8

e=-2

Answer:

5 1/4 or 5.25

Step-by-step explanation:

Multiplying fractions means that we can multiply the numerator by the numerator and the denominator by the denominator straight across without needing a common denominator.

3*7 = 21

4*1 = 4

We end up with the improper fraction 21/4. We can convert this into a mixed number.

Because 4 goes into 21 a total of 5 times with 1 left over, we end up with the mixed number of 5 1/4, or as a decimal, 5.25

Step-by-step explanation:

A line that passes through the origin is proportional (y = mx).  But a line that doesn't pass through the origin isn't proportional (y = mx + b).  So all proportional relationships are linear, but not all linear relationships are proportional.

proportional relationship is just a linear relationship where the line passes through the origin (0, 0).

Answer:

The required points of the given line segment  are ( - 1, - 5 ).

Step-by-step explanation:

Given that the line segment AB whose midpoint M is ( 3, -2 ) and point A is ( 7, - 9), then we have to find point B of the line segment AB -

As we know that-

If a line segment AB is with endpoints ( [tex]x_{1}, y_{1}[/tex] ) and  ( [tex]x_{2}, y_{2}[/tex] ) then the mid points M are-  

M = ( [tex]\frac{ x_{1} + x_{2} }{2}[/tex]  , [tex]\frac{ y_{1} + y_{2} }{2}[/tex] )

Here,

Let A ( 7, - 9 ), B ( x, y ) with midpoint M ( 3, - 2 ) -

then by the midpoint formula M are-

( 3, - 2 )  = (  [tex]\frac{7 + x}{2}[/tex] , [tex]\frac{ - 9 + y}{2}[/tex] )

On comparing x coordinate and y coordinate -

We get,

( [tex]\frac{ 7 + x}{2}[/tex] = 3  , [tex]\frac{- 9 + y}{2}[/tex]  = - 2)

( 7 + x = 6, - 9 + y = - 4 )

( x = 6 - 7, y = - 4 + 9 )

( x = - 1, y = -5 )

Hence the required points  A are ( - 1, - 5 ).

We can also verify by putting these points into Midpoint formula.

What is the solution to the following equation?

х+ (-21) = 8

О А. x= 27

B. х = 29

с.   х = 13

D. х = 17

Option B

The solution to given equation is x = 29

Given that we have to find the solution of given equation

Given equation is x + (- 21 ) = 8

The value of the variable is found by adding, subtracting, multiplying or dividing both sides of the equation to simplify the equation and isolate the variable.

The goal is to have the variable on one side of the equation and numbers on the other.

From given equation,

x + ( -21) = 8

Let us first remove the brackets around -21

We know when we multiply a positive sign number with negative sign number, we get a negative sign number

x + 1( - 21 ) = 8

x - 21 = 8

Move -21 from L.H.S to R.H.S

x = 21 + 8

x = 29

Thus solution to given equation is x = 29 Thus Option B is correct

Answer:

The probability that 5 chosen bagels of which exactly 3 are Asiago cheese = 0.3087 or 30.87%

Step-by-step explanation:

Given:

Total  bagels brought to school = 10

Number of Asiago cheese bagels = 7

To find the probability of randomly choosing 5 Asiago cheese bagels of which exactly 3 are Asiago cheese.

Solution:

Let probability of choosing an Asiago cheese bagel be the successful event.

Probability of choosing one Asiago cheese bagels = [tex]\frac{7}{10}=0.7[/tex]

Probability of success = 0.7

Probability of failure ( not choosing an Asiago cheese bagel) = 1 - Probability of success = [tex]1-0.7=0.3[/tex]

Using Bernoulli Trials

To calculate the binomial probability of obtaining  exactly [tex]r[/tex] events in [tex]n[/tex] trials the formula used is:

⇒ [tex]nCr.p^r.q^{(n-r)}[/tex]

where [tex]p\rightarrow[/tex] Probability of success

[tex]q\rightarrow[/tex] Probability of failure

Thus,  probability of randomly choosing 5 Asiago cheese bagels of which exactly 3 are Asiago cheese can be calculated as :

⇒ [tex]5C3(0.7)^3(0.3)^2[/tex]

⇒ [tex]\frac{5!}{(5-3)!3!}(0.343)(0.09)[/tex]

⇒ [tex]\frac{5!}{(2)!3!}(0.343)(0.09)[/tex]

⇒ [tex]10(0.343)(0.09)[/tex]

⇒ [tex]0.3087\ or\ 30.87\%[/tex] (Answer)

Answer:

Multiples:

2: 2 4 6 8 10 12 14 16 18 20

3: 3 6 9 12 15 18 21 24 27 30

The LCM is 6 (underlined)

Answer:

Step-by-step explanation:

Letting "a" and "c" represent the costs of adult tickets and child tickets, the problem statement gives us two relations:

  3a +5c = 52

  2a +4c = 38

__

We can solve this system of equations using "elimination" as follows:

Dividing the first equation by 2 we get

  a +2c = 19

Multiplying this by 3 and subtracting the first equation eliminates the "a" variable and tells us the price of a child ticket:

  3(a +2c) -(3a +4c) = 3(19) -(52)

  c = 5 . . . . . . collect terms

  a +2·5 = 19 . . substitute for c in the 3rd equation above

  a = 9 . . . . . . subtract 10

One adult ticket costs $9; one child ticket costs $5.

Answer:

[tex]12x+3y\leq 60[/tex]

Step-by-step explanation:

Let

x ----> the numbers of trophies you can buy

y ----> the numbers of medals  you can buy

we know that

The term "at most" means "less than or equal to"

so

The number of trophies multiplied by $12 plus the number of medals multiplied by $3 must be less than or equal to $60

The inequality that represent this situation is

[tex]12x+3y\leq 60[/tex]

[tex]3x + 12y\leq 60[/tex]

Step-by-step explanation:

Answer:

86/1

Step-by-step explanation:

Based on the calculations, the interquartile range of a data set is equal to 53.

In order to determine the statistical measures or the five-number summary, we would arrange the data set in an ascending order:

6,8,9, 30, 30, 36, 38, 54, 64, 70, 75, 81, 93

Based on the data set, the first quartile can be calculated as follows;

First quartile = [(n + 1)/4]th term

First quartile = (13 + 1)/4

First quartile = 3.5th term

First quartile = (30+9)/2

First quartile =  19.5.

For the third quartile, we have:

Third quartile = [3(n + 1)/4]th term

Third quartile = 3 × 3.5th term

Third quartile = 10.5th term

Third quartile = (75+70)/2

Third quartile = 72.5

Mathematically, the interquartile range of a data set is the difference between third quartile (Q₃) and the first quartile:

Interquartile range of data set = Third quartile - First quartile

Interquartile range of data set = 72.5 - 19.5

Interquartile range of data set = 53.

Answer:

22 4/5 yards

Step-by-step explanation:

(7 3/5) x 3 = 22 4/5

To convert 7 3/5 feet to yards, you use the conversion 1 yard = 3 feet. After converting the mixed number to an improper fraction, you divide by 3, yielding the answer 2 8/15 yards, which corresponds to option C.

To convert feet to yards, we can use the conversion factor that 1 yard is equal to 3 feet. Since the student needs to find out how many yards are in 7 3/5 feet, we can convert mixed numbers to improper fractions to simplify the calculation.

The mixed number 7 3/5 can be converted to an improper fraction by multiplying the whole number 7 by the denominator 5 and adding the numerator 3, then placing the result over the original denominator: (7 * 5) + 3 = 35 + 3 = 38, so 7 3/5 becomes 38/5.

To convert 38/5 feet to yards, divide by 3 because there are 3 feet in 1 yard:

38/5 feet * 1 yard/3 feet = (38/5)/3 = 38/5 * 1/3

This simplifies to 38/5 * 1/3 = 38/15 yards

Then divide 38 by 15 to get 2 with a remainder of 8, so we have 2 and 8/15 yards.

Therefore, the answer is C. 2 8/15 yards.

The answer is 120 cubic inches.

There are 120 cubic inches contained inside the box.

The volume of space occupied by a substance or item, or the space enclosed within a container.

Volume = L * B * H (unit^3)

Given length of the cuboid = 12 inches

Given breadth of the cuboid = 5 inches

Given height of the cuboid = 2 inches

Volume of cuboid = 12 * 5 * 2 = 120 inch^3

Hence there are 120 cubic inches contained inside the box.

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Answer:

Step-by-step explanation:

Here, the "whole number" is the portion of the number to the left of the decimal point: 593.

The "remainder" is the portion left after the whole number is subtracted: 0.5625.

Answer: 31.43 cm

Step-by-step explanation:

The length of an arc  is calculated using the formula:

[tex]\frac{theta}{360}[/tex] X 2[tex]\pi[/tex]r

where : theta is the angle in degree

r = radius

If the angle is given in Radian , the length can be calculated using the formula:

L = r∅

Since , the angle is given in degree , we will use the first formula.

L = [tex]\frac{theta}{360}[/tex] X 2[tex]\pi[/tex]r

L = [tex]\frac{120}{360}[/tex] X 2 X π X 15

L = [tex]\frac{1}{3}[/tex] X 2 X [tex]\frac{22}{7}[/tex] X 15

L = [tex]\frac{660}{21}[/tex]

L = 31.42857143

L ≈ 31.43 cm

Answer:

T1 =2 , Tn = 1 /tn-1 For The Geometricseries 6 + 3 + 3/2 + 3/4 + .

Step-by-step explanation:

Answer:

2, 5, 8, 11, 14

Step-by-step explanation:

Find the first 5 terms by substituting n = 2, 3, 4, 5 into the recursive formula

t₂ = t₁ + 3 = 2 + 3 = 5

t₃ = t₂ + 3 = 5 + 3 = 8

t₄ = t₃ + 3 = 8 + 3 = 11

t₅ = t₄ + 3 = 11 + 3 = 14

The first 5 terms are 2, 5, 8, 11, 14

Answer:

520 eggs

Step-by-step explanation:

5%*2 is 10%.

10%*10 is 100%,that is the full carton of eggs.

26*2*10 is 520.

There were 520 eggs in the carton altogether.

Hope this helps :)

To find the total number of eggs in the carton, we use the information that 26 eggs (5% of the total) were broken. By solving the equation 0.05x = 26, we determine there were 520 eggs in the carton.

The question at hand is, "26 eggs in a carton were broken. This was 5% of the total number of eggs in the carton. How many eggs were in the carton altogether?"

To solve this problem, let us consider the total number of eggs in the carton as x. Given that 5% of x is equal to 26 eggs, we can write this relationship as an equation: 0.05x = 26. To find x, we divide both sides of the equation by 0.05, yielding x = 26 / 0.05. Calculating this result, we find that x = 520.

Therefore, there were 520 eggs in the carton altogether.

Answer:

B)

Step-by-step explanation:

Do the zero property.

x-7=0, x+6=0

x=0+7=7,

x=0-6=-6

Answer:

b 100% true

Step-by-step explanation:

Answer:

Step-by-step explanation:

For this case we can express the rates as:

[tex]\frac {2.40} {12} * \frac {dollars} {pen} = 0.2 \frac {dollars} {pen}[/tex]

Option A

[tex]\frac {12} {2.40} * \frac {pen} {dollars} = 5 \frac {pens} {dollar}[/tex]

Option C

If the pen package contains 12, then the cost of the package is $2.40.

Option B

Answer:

Option A, B, C

Answer: 1, 2, and 3

Step-by-step explanation: I did the question

Answer:we multiply by the reciprocal of a fraction when completing a division problem because it is a rule in mathematics that when you divide two fraction, you change the division sign to multiplication and flip the fraction at the right of the multiplication sign.

Step-by-step explanation:

For example if you have 4÷ 1/2. It basically means how many 1/2 can one get in 4. And the answers is 8.

Therefore multiplying by the reciprocal of a fraction when completing a division problem is a short cut method that has been tested and proven to be correct.

Answer:

The moss will cover [tex]2\frac{11}{24}[/tex] inches of the ruler after 2 days.

Step-by-step explanation:

After one hour, the moss had covered [tex]1\frac{1}{8}[/tex] inches of the ruler.

Again, after two hours, it had covered another [tex]1\frac{1}{3}[/tex] inches of the ruler.

Therefore, after two hours the moss covers altogether ([tex]1\frac{1}{8} + 1\frac{1}{3}[/tex]) inches of the ruler.

Now, ([tex]1\frac{1}{8} + 1\frac{1}{3}[/tex])

= [tex]\frac{9}{8} + \frac{4}{3}[/tex]

= [tex]\frac{9\times 3 + 4 \times 8}{24}[/tex]

= [tex]\frac{59}{24}[/tex]

= [tex]2\frac{11}{24}[/tex] inches

Therefore, the moss will cover [tex]2\frac{11}{24}[/tex] inches of the ruler after 2 days. (Answer)

the answer is 38

16+18+4

Answer:

46

Step-by-step explanation:

The picture are irrelevant and is used to trick you.

Let swirly hair = s

Let curly hair = c

Let flat hair = f

Ok, now we can rewrite the picture in math terms

s = 16

c = 2 + s = 2 + (16) = 18

s = 4 + f → f = s - 4 = (16) - 4 = 12

s + c + f = 16 + 18 + 12 = 46

Answer:

t=44°

Step-by-step explanation:

The sum of the interior angles of any pentagon is always 540 degrees.

Let's set up an equation with this information: (all figures are in degrees)

[tex]t+3t+t+32+149+139=540[/tex]

Now we combine all like terms.

[tex]5t+320=540[/tex]

Now begin to isolate t be subtracting 320 from both sides.

[tex]5t=220[/tex]

Finally divide both sides by 5 to isolate t.

t=44°

To find the value of x for the box of cereal, set the given expression for the surface area equal to 192 and solve for x.

To find the value of x, we need to set the given expression for the surface area of the box equal to 192 and solve for x. So, we have:

2x^2 + 48x + 88 = 192
2x^2 + 48x - 104 = 0

To solve this quadratic equation, we can either factor it or use the quadratic formula. Let's factor it:

(2x - 4)(x + 26) = 0

Setting each factor equal to zero and solving for x, we get:

2x - 4 = 0, x = 2
x + 26 = 0, x = -26

So, the possible values of x are 2 and -26. However, since the dimensions of a box cannot be negative, the value of x for the box of cereal is 2.

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Answer:

[tex]3,462\ bacteria[/tex]

Step-by-step explanation:

In this problem we have a exponential function of the form

[tex]y=a(b^x)[/tex]

where

x is the time in hours

y is the numbers of bacteria

a is the initial value

b is the base

r is the rate of growth

b=(1+r)

we have that

[tex]a=3,000\ bacteria[/tex]

For x=8, y=3,300

substitute in the exponential function

[tex]3,300=3,000(b^8)[/tex]

solve for b

[tex]1.1=(b^8)[/tex]

[tex]b=\sqrt[8]{1.1}[/tex]

[tex]b=1.0120[/tex]

Find the value of r

[tex]r=b-1=1.0120-1=0.0120=1.20\%[/tex]

The equation is equal to

[tex]y=3,000(1.012^x)[/tex]

For x=12 hours

substitute the value of x in the equation

[tex]y=3,000(1.012^{12})[/tex]

[tex]y=3,462\ bacteria[/tex]

ln z + ln 7 = ln 63

When adding two logarithms of the same base, you can combine them into a single logarithm where the input is the product of both previous inputs

ln 7z = ln 63

Take the exponential of e to both sides

7z = 63

Divide both sides by 7

z = 9

Let me know if you need any clarifications, thanks!

Answer:

3

Step-by-step explanation:

3+11t-9u=3+11(9)-9(11)=3+99-99=3