Bill is twice as old as Adam
Charlie is 3 years younger than Bill
The sum of their three ages is 27
Find the ratio of Adam's age to Charlie's age, giving your answer in the form 1:n

Answers

Answer 1

Answer:

[tex] \frac{1}{1.5} [/tex]

Step-by-step explanation:

Let B represent Bill age

A be adam age

C be charlie age

We know that

[tex]b = 2a[/tex]

We also know that

[tex]c = b - 3[/tex]

And we know that

[tex]a + b + c = 27[/tex]

Fist let subsitue c for b-3

[tex]a + b + (b - 3) = 27[/tex]

[tex]a + 2b - 3 = 27[/tex]

[tex]a + 2b = 30[/tex]

We know that b=2a so

[tex]a + 2(2a) = 30[/tex]

[tex]a + 4a = 30[/tex]

[tex]5a = 30[/tex]

[tex]a = 6[/tex]

Plug that in first equation to solve for b

[tex]b = 2(6)[/tex]

[tex]b = 12[/tex]

Finally plug that in the final equation to solve for c.

[tex]6 + 12 + c = 27[/tex]

[tex]c = 9[/tex]

Know we want the ratio of Adam age, a to Charlie age, c.

So we have

[tex] \frac{6}{9} = \frac{2}{3} = \frac{1}{1.5} [/tex]


Related Questions

At a local high school,the probability that the student speaks kankanaey and ilocano is 40%.The probability that a student speaks kankanaey is 70%.What is the probability that the student speaks ilocano given that he speaks kankanaey?​

Answers

Using conditional probability, it is found that there is a 0.5714 = 57.14% probability that the student speaks ilocano given that he speaks kankanaey.

What is Conditional Probability?

Conditional probability is the probability of one event happening, considering a previous event. The formula is:

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which:

P(B|A) is the probability of event B happening, given that A happened.[tex]P(A \cap B)[/tex] is the probability of both A and B happening.P(A) is the probability of A happening.

In this problem, the events are given as follows:

Event A: Student speaks kankanaey.Event B: Student speaks ilocano.

Hence, the parameters are given as follows:

[tex]P(A \cap B) = 0.4, P(A) = 0.7[/tex]

Then, the probability that the student speaks ilocano given that he speaks kankanaey is given by:

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.4}{0.7} = 0.5714[/tex]

More can be learned about conditional probability at https://brainly.com/question/14398287

Samara runs 4 miles in 38 minutes. If she continues running at the same pace, how many minutes will it take her to run 12 miles?

Enter the correct answer in the box.

Answers

Answer:

114 minutes

Step-by-step explanation:

samara runs 4 miles in 38 minutes

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

time taken to cover a distance of 12 miles:

4 miles in 38 minute12 ÷ 4 = 33 × 38 minutes114 minutes

many minutes will it take her to run 12 miles is 114 minutes

17. 5 percent of 120 can be worked out using the following method

Answers

Answer : 17.5/100 • 120 = 21

The equation, 3x2 6x 3y2 7y 4 = 0, represents a conic. The conic represented by the equation is a/an because.

Answers

The given equation is an equation of a circle because it looks similar to the general equation of a circle.

What is the general equation of a circle?

The general equation of a circle is:

x² + y² +2gx + 2fy + c = 0...........eq1

Where (-g, -f) is the center of the circle.

c is a constant

Given equation is

3x² +6x + 3y²+7y+4 = 0

Let us take 3 as common

x² + 2x+y²+7/3y + 4/3 = 0

Let us rearrange the equation

x² + y²+2x +7/3y + 4/3 = 0...........eq2

Now look at eq1 and eq2

We got that eq2 is having a similar pattern as eq1.

Therefore, The given equation is an equation of a circle.

To get more about circle visit:

https://brainly.com/question/1506955

Answer:

circle A = C

Step-by-step explanation:

13<2x<24 I need help in this questions pls help me asap

Answers

Answer:

13/2<x<12

or  (13/2, 12)

Step-by-step explanation:

break the promblem into two seperate equations and solve.

A number times four is six less than twice the number find the number

Answers

Answer:

The number is -3

Step-by-step explanation:

First, let's translate the statement into an equation.

4x = 2x - 6

Step 1: Subtract 2x from both sides.

[tex]4x-2x=2x-6-2x[/tex] [tex]2x=-6[/tex]

Step 2: Divide both sides by 2.

[tex]2x/2 = -6/2[/tex] [tex]x=-3[/tex]

Therefore, the number is -3/

If the number times four is six less than twice the number then the number will be -3.

What is equation?

Equation is relationship between two or more variables that are expressed in equal to form. Equation of two variables look like ax+by=c. It is of many types like linear equation, quadratic equation, cubic equation, etc.

How to find number?

let the number be x.

According to the questions the following equation can be made:

4x=2x-6

We have multiplied by 4 with the number and 2 with number and subtracted 6 because it is given that 4 times the number is equal to twice the number less 6.

Now we have to solve the equation for x.

4x-2x=-6

2x=-6

x=-6/2

x=-3

Hence if the number times four is six less than twice the number then the number will be -3.

Learn more about equation at https://brainly.com/question/2972832

#SPJ2

pleaseeee helpppp???? :)))))))))

Answers

Answer:

(a) 28π cm

(b) 88 cm

Step-by-step explanation:

Part A — Give an exact answer in terms of π.

To find circumference of a circle, our formula is:

[tex]\displaystyle \large{C=2\pi r}[/tex]

Where:

C = circumference r = radius

Radius is,the line segment or value from center to one of endpoints. Our radius is given as 14 cm in the shown attachment.

Henceforth, our circumference is:

[tex]\displaystyle \large{C=2\pi \cdot 14}\\\displaystyle \large{C = 28\pi}[/tex]

So for part A, the circumference is 28π cm.

Part B — Use π ≈ 22/7 and express your answer as a fraction in lowest terms.

For this part, use the circumference that we solved from part A:

[tex]\displaystyle \large{C=28\pi}[/tex]

Substitute π = 22/7 in.

[tex]\displaystyle \large{C \approx 28\cdot \frac{22}{7}}\\\displaystyle \large{C \approx 4\cdot 22}\\\displaystyle \large{C \approx 88 \ cm}[/tex]

Henceforth, the circumference in Part B is approximately 88 cm.

Necesito la respuesta con explicación de:
(6+5)-16

Answers

PEMDAS is the way to solve these types of equations

  [tex](6+5)-16=(11)-16 = 11 - 16 = -5[/tex]

Hope that helps!

The answer is -5 I hope this helps you

Evaluate the expression.
(65 + (1/5x 5) + 6) = 9

Answers

Let's verify

65+(1/5×5)+565+671

As LHS not equal to RHS

This is not true

6. James delivers 435 circulars in 3 hours. At this rate, how many circulars can he deliver in 4 5 hours?​

Answers

Answer:

580 circulars

Step-by-step explanation:

Formula: Number of circulars divide by Hours

435 circulars / 3 hours = x circulars / 4.5 hours

145 circulars / 1 hour = x circulars / 4 hours

(145 circulars / 1 hour) * 4 hours = x circulars

580 circulars = x circulars

x = 580 circulars, delivered in 4 hours

Hence, at this rate James will delivers 580 circulars in 4 hours.

[RevyBreeze]

James will be able to deliver 600 circulars in 4 hrs

PLEASEEEEE HELP ME, ILL GIVE BRAINLIEST

Find the absolute value of 3+8i

Answers

Answer:

73 is the answer 100%

Step-by-step explanation:

Hoped this helped a little at least :)

*UPDATED*

Using abosute value formulas:

|a + bi| = sqrt( a + bi)(a-bi) = sqrt(a^2 + b^2)

In the given equation a = 3 and b = 8


sqrt(3^2 + 8^2)

Sqrt(73)


Answer: sqrt(73)

I NEED HELP!! also please be sure its the right answer!!

Answers

See the attached picture with the solution.

In New York, state sales tax is 8. 5%. If a book cost 12. 99 what is the total cost Simon will pay for a book

Answers

Answer:

14.09415

Step-by-step explanation:

what's 5 divided by 3 1/3?

Answers

Answer:

1.5

Step-by-step explanation:

Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction.

Mark me brainliest!!

A raccoon travels 113 miles in 0.8 hours
How fast did the raccoon travel in mles
per hour? Round to the nearest tenth

Answers

113 in .8 hours

113 / 4 in .2 hours

28.25 in .2 hours

28.25 * 5 in 1 hour

141.25 in 1 hour

141.3 mph

Which statement about the possible designs is true, given the owner’s requirements? three circular displays can be placed in one row, exactly as shown on the given grid. two circular displays can be placed so they are each the same distance from the cashier’s station. the maximum number of circular displays that can be used is 4. the maximum number of circular displays that can be used is 5.

Answers

Answer:

The maximum number of circular displays that can be used is 4.

Or C on edge

Step-by-step explanation:

How many solutions does the system of equations below have?
5x + y = 8
15x + 15y = 14
no solution
one solution
infinitely many solutions

Answers

Answer:

One solution                    

Step-by-step explanation:

5x + y = 8

15x + 15y = 14

Lets solve using substitution, first we need to turn "5x + = 8" into "y = mx + b" or slope - intercept form

So we solve for "y" in the equation "5x + y = 8"

5x + y = 8

Step 1: Subtract 5x from both sides.

5x + y − 5x = 8 − 5x

Step 2: 5x subtracted by 5x cancel out and "8 - 5x" are flipped

y = −5x + 8

Now we can solve using substitution:

We substitute "-5x + 8" into the equation "15x + 15y = 14" for y

So it would look like this:

15x + 15(-5x + 8) = 14

Now we just solve for x

15x + (15)(−5x) + (15)(8) = 14(Distribute)

15x − 75x + 120 = 14

(15x − 75x) + (120) = 14(Combine Like Terms)

−60x + 120 = 14

Step 2: Subtract 120 from both sides.

−60x + 120 − 120 = 14 − 120

−60x = −106

Divide both sides by -60

[tex]\dfrac{ -60x }{ -60 } = \dfrac{ -106 }{ -60 }[/tex]

Simplify

[tex]x = \dfrac{ 53 }{ 30 }[/tex]

Now that we know the value of x, we can solve for y in any of the equations, but let's use the equation "y = −5x + 8"

[tex]\mathrm{So\:it\:would\:look\:like\:this:\ y = -5 \left( \dfrac{ 53 }{ 30 } \right) +8}[/tex]

[tex]\mathrm{Now\:lets\:solve\:for\:"y"\:then}[/tex]

[tex]y = -5 \left( \dfrac{ 53 }{ 30 } \right) +8}[/tex]

[tex]\mathrm{Express\: -5 \times \dfrac{ 53 }{ 30 }\:as\:a\:single\:fraction}[/tex]

[tex]y = \dfrac{ -5 \times 53 }{ 30 } +8[/tex]

[tex]\mathrm{Multiply\:-5 \:and\:53\:to\:get\:-265 }[/tex]

[tex]y = \dfrac{ -265 }{ 30 } +8[/tex]

[tex]\mathrm{Simplify\: \dfrac{ -265 }{ 30 } \:,by\:dividing\:both\:-265\:and\:30\:by\:5} }[/tex]

[tex]y = \dfrac{ -265 \div 5 }{ 30 \div 5 } +8[/tex]

[tex]\mathrm{Simplify}[/tex]

[tex]y = - \dfrac{ 53 }{ 6 } +8[/tex]

[tex]\mathrm{Turn\:8\:into\:a\:fraction\:that\:has\:the\:same\:denominator\:as\: - \dfrac{ 53 }{ 6 }}[/tex]

[tex]\mathrm{Multiples\:of\:1: \:1,2,3,4,5,6}[/tex]

[tex]\mathrm{Multiples\:of\:6: \:6,12,18,24,30,36,42,48}[/tex]

[tex]\mathrm{Convert\:8\:to\:fraction\:\dfrac{ 48 }{ 6 }}[/tex]

[tex]y = - \dfrac{ 53 }{ 6 } + \dfrac{ 48 }{ 6 }[/tex]

[tex]\mathrm{Since\: - \dfrac{ 53 }{ 6 }\:have\:the\:same\:denominator\:,\:add\:them\:by\:adding\:their\:numerators}[/tex]

[tex]y = \dfrac{ -53+48 }{ 6 }[/tex]

[tex]\mathrm{Add\: -53 \: and\: 48\: to\: get\: -5}[/tex]

[tex]y = - \dfrac{ 5 }{ 6 }[/tex]

[tex]\mathrm{The\:solution\:is\:the\:ordered\:pair\:(\dfrac{ 53 }{ 30 }, - \dfrac{ 5 }{ 6 })}[/tex]

So there is only one solution to the equation.

The relative frequency of Event A in an experiment is 1/3.

If the experiment is performed 30 times, how many times should you expect Event A to occur?

Enter your answer as a number, like this: 42

Answers

Answer:

10

Step-by-step explanation:

30 x 1/3 = 10

aka if you do something 30 times and every 3 times it happens you do it 10 times.

Mary invests £12000 in a savings account. The account pays 1. 5% compound interest per year. Work out the value of her investment after 2 years

Answers

Answer:

The value of Mary's investment after two years = £12362.7

Step-by-step explanation:P = Principal / initial amountR = rate of interest per cent per yearT = number of yearsA = final amount at the end of T yearsThen:A = P*(1 + R/100)^2In our example:P = £12000R = 1.5 per cent per yearT = 2 yearsThus:A = 12000*(1 + 1.5/100)^2   = 12000*(1 + 0.015)^2   = 12000*(1.015)^2    = 12000*(1.030225)    = 12362.7Value of investment after two years = £12362.7

A group of 125 teenagers were asked which of the following activities they would most likely choose to spend their free time doing: reading a book, watching television, playing video games, or listening to music. The results are displayed in the circle graph below.
How many teenagers chose to listen to music?

a. 40
b. 50
c. 45
d. 35

Answers

Answer:

D. 35 of teenagers chose to listen to Music

Step-by-step explanation:

We are given the following info

The percentage of teenagers listening to musicthe total number of Teenagers

All we have to do next is find the percentage of Teenagers that Listened to music which is already given to us: 28%

Now we find 28% of 125 and we get 35 teenagers

Hope I could help

Answer:

35

Step-by-step explanation:

28%of 125 = 35

16% of 125 = 20

24% of 125 = 30

32% of 125 = 40

PLS HELP Look at the linear equation. x - 6 = 1/4x - 9 Determine which steps are needed to solve the equation by selecting Yes or No. A Add 14x to each side. Yes, No B Subtract 14x from each side. Yes, No C Add 6 to each side. Yes, No D Subtract 6 from each side. Yes, No E Multiply each side by 34. Yes, No F Multiply each side by 43. Yes No

Answers

Answer:

Subtract 1/4x from each side (Yes)

Answer:

no, yes, yes, no, no, yes

Step-by-step explanation:

The graph of a function f is shown below find f(0). i don’t really understand these but I have to get this lesson done for class.

Answers

Answer:  4

Explanation:

Locate x = 0 on the x axis number line.

Then move up or down until you reach the blue curve. In this case we move upward.

You should arrive at y = 4

This means (x,y) = (0,4) is a point on the blue cubic curve, and that f(0) = 4.

An electric utility worker wants to anchor a guy wire from the top of a ​20.4-foot utility pole to a spot that is 8.5​ feet from the base of the pole on level ground. How long does the guy wire need to be? Round your answer to one decimal place.

Answers

The length of the guys wire should be = 22.1 feet

Using pythagorean theorem in geometry

The pythagorean theorem states that the square on the hypotenuse is equal to the sum of the squares on the other two sides.

Therefore,

[tex]c {}^{2} = 20.4 {}^{2} + 8.5 {}^{2} [/tex]

[tex]c {}^{2} = 416.16 + 72.25[/tex]

[tex]c {}^{2} = 488.41[/tex]

[tex]c = \sqrt{488.41} [/tex]

c = 22.1 feet.

Where c represents the length of the guys wire

Learn more about Pythagorean theorem here:

https://brainly.com/question/343682

Given the graphs of f(x) = 2x + 1 and g(x) = 5x – 2, what is the solution to the equation f(x) = g(x)?A)0B)1C)3D)–2

Answers

Answer:

x=1

Step-by-step explanation:

f(x) = 2x + 1

g(x) = 5x – 2

f(x) = g(x)

2x+1 = 5x-2

Subtract 2x from each side

2x+1 = 5x-2-2x

1 = 3x-2

Add 2 to each side

1+2 =3x-2+2

3 = 3x

Divide by 3

3/3 =3x/3

1 =x

Please Help 20 Points

Answers

Answer:

2nd one

Step-by-step explanation:

Just the 2nd one

Answer:

B Is the answer.

Step-by-step explanation:

The given curve will not pass through the even power. So when x=2, it will touch the x- axis at x=2, but not pass through it.

Hope this helps

May I have help with this quickly, please? Thank you! :D

Answers

Answer:

220

Step-by-step explanation:

First you divide 15 by 2 then you take the answer and multiply the 1750 . Last but not least you divide the answer by 60 to get your answer

24. 123456 is the code for FATHER, 4526 is the code for?

Answers

FATHER = 123456

That means that each letter of father represents the following numbers:

F = 1A = 2T = 3H = 4E = 5R = 6

Now,

Let's see the given code

4526

Which letters are they representing, Let's see:

4 = H5 = E2 = A6 = R

Thus, 4526 is the code for the word Hear...

i need it in 5 mins please

Answers

Answer:

hope u understand

180°-142°=38°

x=38°

here is your answer

mark as brilliant and follow pls

Answer:

142

Step-by-step explanation:

because it is an obtuse angle and it is equvilent to an exteroir angle which is also 142 degrees

pls mark brainliest

HELP
Select all the expressions that are equal to 5/9×8

9 divided by 5 x 8
8/9 x 5
5 divided by 8 x 9
5 x 1/9 x 8
5 x 8 divided by 9

Part B

evaluate the expression in part a enter your answer in the boxes

Answers

Answer:

8/9 x 5

5 x 1/9 x 8

5 x 8 divided by 9

Step-by-step explanation:

5/9 = 0.5555*8 =4.444

8/9 = 0.8888*5 =4.444

5*1/9 = 0.5555*8 =4.444

5*8 = 40/9 =4.444

to make fruit punch, susannah mixes lemonade with orange juice in the ratio of 5:9. she uses 10 cups of lemonade. how many cups of orange juice does she have? Please use proportions and show work

Answers

Answer:

18:1

Step-by-step explanation:

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