Sam is 3 times older than her brother, Owen. In 5 years, Sam will be twice as old as Owen. How old are they now?

Answers

Answer 1

Answer:

Sam is 15; Owen is 5.

Step-by-step explanation:

Let s denote Sam's age and let o denote Owen's age.

So, Sam is three times older than Owen. Thus:

[tex]s=3o[/tex]

In 5 years, Sam will be twice as old as Owen. In other words, Sam's current age plus 5 years will be Owen's current age plus five years times 2. Thus:

[tex]s+5=2(o+5)[/tex]

We have a system of equations. Solve for substituting the first equation into the second. Thus:

[tex]3o+5=2(o+5)[/tex]

Distribute the right:

[tex]3o+5=2o+10[/tex]

Subtract 2o from both sides:

[tex]o+5=10[/tex]

Subtract 5 from both sides:

[tex]o=5[/tex]

So, Owen is currently 5 years old.

Sam is 3 times older than Owen, so Sam is 15 years old.

And we're done :)


Related Questions

If you borrow $450.00 at a 5% interest, how much will you pay in one month?

Answers

Answer: Between about 31 and 33 dollars per month

Step-by-step explanation:

NEED HELP ASAP!!! Please explain your answer. Solve 0 = (3x - 4) / 5

Answers

Answer:

x= 1.333333333333 or 1 1/3

Step-by-step explanation:

solve for x, 0 times 5= 0 plus 4 is 4 div by 3 is 1 and 1/3

what are the domain and range of the function f(x)=5x-3+1?​

Answers

Answer:

Domain : (-∞,∞)

Range : (1 , ∞)

A blue scarf is 7/8 of a yard in a race car is 5/8 of a yard find the difference in length of the two scars write your answer as a simplified fraction

Answers

Answer:

Difference in length = 1/4 yards

Step-by-step explanation:

Given:

Blue scarf in yard = 7/8 yard

Another car in yard = 5/8 yard

Find:

Difference in length

Computation:

Difference in length = Blue scarf in yard - Another car in yard

Difference in length = 7/8 - 5/8

Difference in length = 2/8

Difference in length = 1/4 yards

The table shown classifies the 35 students in a
college statistics course by year (1st, 2nd, 3rd, 4th)
and type of major (Humanities, Sciences, Other). A
student from this course will be selected at random.
What is the probability that the student's major is
Humanities?

Answers

The correct answer is 0.45 or 45%

Explanation:

In this case, the probability of selecting a student whose major is Humanities can be calculated by finding the number of Humanities students, which is considered as the desired outcome, and dividing this by the total of outcomes or students. The process to find the probability is shown below:

[tex]P = \frac{Desired outcomes}{Total outcomes}[/tex]

[tex]P= \frac{Students from Humanities}{Total students}[/tex]

[tex]Students of Humanities = 5 + 5 + 3 + 3 = 16 students[/tex] (Add the students of each year that are part of Humanities)

[tex]Total of students = 35[/tex] (This number is provided in the question but can also be found by adding all numbers in the table)

[tex]P = \frac{16}{35}[/tex]

[tex]P = 0.45[/tex]

Multiply the probability by 100 to know its equivalent in percentages 0.45 x 100 = 45. This means the probability that a student of humanities is selected is 0.45 or 45%.

A piece of carpet is 360 cm long. Mr. Smith cuts it into three pieces in the ratio 2:3:4. Workout the length of the longest piece of carpet.

Answers

Answer:

The longest length of carpet is 160 cm.

Step-by-step explanation:

Given that the total ratio(units) of the carpet is 9(2+3+4). So first, you have to find the length of carpet in 1 unit :

[tex]9 \: units = 360 \: cm[/tex]

[tex]1 \: unit = 360cm \div 9[/tex]

[tex]1 \: unit = 40 \: cm[/tex]

Next, you have to find the length of carpet in 4 ratio as the question wants the longest length :

[tex]4 \: units = 40 \: cm \times 4[/tex]

[tex]4 \: units = 160 \: cm[/tex]

Answer:

160cm

Step-by-step explanation:

2+3+4= 9

4/9 x 360= 160cm

the sum of m and 188 is 232

write the sentence as an equation ​

Answers

Answer:

m + 188 = 232

Step-by-step explanation:

sum → +

m + 188 = 232

Answer:

m + 188 = 232

Thats is an equation for your problem

What is 2 cents as a fraction

Answers

I think It’s 2/100 or 1/50 :)

Find z such that the proportion of observations that are less than z in a standard normal distribution is 0.23. (Enter your answer rounded to two decimal places.)Z=______

Answers

Answer:

-0.74

Step-by-step explanation:

The computation of Z is shown below:

According to the question, data provided in the question is as follows

P(Z >  Z) = 0.23

Based on the above information, the calculation for Z is

Use the table of the standard normal distribution for z

By using this the Z value comes is -0.74

hence, in case of the standard normal distribution, the value of z is -0.74 and the same is to be considered


Use the slider to rotate AABC about point P through different angles of rotation (a). As you move the slider, you'll see the image, AA'B'C'.
move on the screen. At what angles of rotation does AA'B'C' coincide with each of the other triangle images?

Answers

Answer:

Step-by-step explanation:

Answer:

The angles of rotation coincide as follows:

DEF  is  45°

GHI is  115°

JKL  is  210°

Step-by-step explanation:

How is mulhplying intergers
Similar to multiplying whole
numbers?

Answers

Answer: Multiplying integers is very similar to multiplying whole numbers. A positive number times a negative number equals a negative number. A negative number times a negative number equals a positive number. A negative number times a positive number equals a negative number.

If i am in texas then I am in the south

Answers

━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━  

Of the United States, true, you are in the south.

Texas is a southern state of the USA.

Of the world, false, you are more north than south, and also you are around the middle north of the world.

The pictures I attached are maps of the USA and the world.

As you can see in the USA map, Texas is one of the states are are the lowest.

But if you look at the world map, Texas is not very south.

━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━  


Problem 1: Solve the systems of equations by the method of your choice.
2x+y=5
x-y=1

Problem 2: The difference of two complementary angles is 30 degrees. Set up a system of linear equations that would find the angles. Do not solve the system.

Problem 3: A cashier has 30 bills, all of which are $10 or $20 bills. The total value of the money is $460. Set up a system of linear equations that would find how many of each type of bills the cashier has. Do not solve the system.

Problem 4: Give an example of a system of linear equations that has no solutions. Explain how can you decide the number of solutions without solving the system.

Answers

Answer:

x=2 and y=1

Step-by-step explanation:

2x+y=5

x-y=1

buy adding both equations we get

3x=6

x=2  ( divide 3 on both sides)

put x=2 in any equation  

2-y=1

y=2-1

y =1

p2

Problem#2

Let say two complementary angles are A & B

difference of two complementary angles is 30°

=> A - B = 30

Sum of  two complementary angles is 90°

=> A + B = 90

Hence A = 60° , B = 30°

Problem#3

Total bill  = 30

$ 10 Bills = A

$ 20 Bills  = B

10 * A  + 20* B = 460

A + B = 30

A = 14 , B = 16

Problem#4

4x+2=y

2y−8x=10

The first step is to simplify the second equation into  

y=mx+b form.

2y−8x=10y  

y−4x=5

y=4x+5

Now, the two equations are:

y=4x+2

y=4x+5



Given f(x) = 52x, evaluate f-1), f(o), and K2).

01/25, 1, 625

Answers

Answer:

[tex]f(-1) = \frac{5}{2}[/tex]

[tex]f(0) = 5[/tex]

[tex]f(2) = 20[/tex]

Step-by-step explanation:

Given

[tex]f(x) = 5(2^x)[/tex]

Required

Determine f(-1); f(0) and f(2)

Solving f(-1)

In this case, we simply take x as;

[tex]x = -1[/tex]

Substitute -1 for x in [tex]f(x) = 5(2^x)[/tex]

[tex]f(-1) = 5(2^{-1})[/tex]

Apply law of indices

[tex]f(-1) = 5 * \frac{1}{2}[/tex]

[tex]f(-1) = \frac{5}{2}[/tex]

Solving f(0)

In this case, we simply take x as;

[tex]x = 0[/tex]

Substitute 0 for x in [tex]f(x) = 5(2^x)[/tex]

[tex]f(0) = 5(2^0)[/tex]

[tex]f(0) = 5(1)[/tex]

[tex]f(0) = 5[/tex]

Solving f(2)

In this case, we simply take x as;

[tex]x = 2[/tex]

Substitute 2 for x in [tex]f(x) = 5(2^x)[/tex]

[tex]f(2) = 5(2^2)[/tex]

[tex]f(2) = 5(4)[/tex]

[tex]f(2) = 20[/tex]

If 20% of X =y, then y% of 20 is the same as:​

Answers

Answer:

4% of x

Step-by-step explanation:

20% of x

20% of x = 0.2x20% of x = y ⇒ 0.2x = y

y% of 20

y% of 20 = 20*y/100 = 0.2y0.2y = 0.2*0.2x = 0.04xy% of 20 = 4% of x

Hope it is what you are looking for

range of 2.45 3.50 2.89 2.99

Answers

Answer:

[tex]\huge\boxed{\mathrm{Range = 1.05}}[/tex]

Step-by-step explanation:

Given Data:

2.45 , 3.50 , 2.89 , 2.99

Arrange it in ascending order.

2.45 , 2.89 , 2.99 , 3.50

Range = Highest No - Lowest No.

Range = 3.50 - 2.45

Range = 1.05

Answer:

Range=largest value-smallest value

Range=2.99-2.45

Range=0.54

Step-by-step explanation:

hope it is helpful for you

if it is please follow

find simple interest on #1200 for 3 years at 4.25% per anum​

Answers

Answer:

$153.00

Step-by-step explanation:

A = $1,353.00

(I = A - P = $153.00)

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 4.25%/100 = 0.0425 per year.

Solving our equation:

A = 1200(1 + (0.0425 × 3)) = 1353

A = $1,353.00

The total amount accrued, principal plus interest, from simple interest on a principal of $1,200.00 at a rate of 4.25% per year for 3 years is $1,353.00.

Answer:

$153

Step-by-step explanation:

Simple Intrest = P ( money invested ) * R ( percentage ) * T ( year )

I = P * R * T / 100

I = 1200 * 4.25 * 3 = 15300 / 100 = $153

This is the easiest method for me and I hope it helps :)

Josh has 212 marbles. Peck has 314 marbles. Round each number to the nearest hundred. Then, type how much marbles more does Peck have.

Answers

Round each number to the nearest hundred.

 212 = 200.

 314 = 300.

How much more marbles does Peck have?

 314 - 212 = 102.

That is your answer. Hope this helps!

Answer:

100 more marbles

Step-by-step explanation:

So first let's round the numbers to the nearest hundred. So 212 rounds to 200, and 314 rounds to 300. Then we do 300-200 and get 100. SO the answer is 100.

Bepotastine besilate (BEPREVE) ophthalmic solution contains 1.5% w/v of the therapeutic agent. Express this concentration in mg/mL.

Answers

Answer:

15mg/ml

Step-by-step explanation:

Percent mass per volume ( % m/v) is unit expression that tells us how many grams of a solute that we can find 100 ml of a particular solution.

In the above question, we are asked to express 1.5%w/v Bepotastine besilate (BEPREVE) ophthalmic solution as mg/mL

Step 1

1.5% w/v = 1.5 g of Bepotastine besilate (BEPREVE) in 100ml ophthalmic solution

Hence, if

100ml = 1.5g

1 ml = y g

We Cross Multiply

100ml × yg = 1 ml × 1.5g

yg = 1 ml × 1.5g/100ml

= 0.015g

Therefore, in 1 ml we have 0.15 g.

Step 2

Since we are asked to express as mg/ml

We convert 0.015g to mg

1 gram = 1000 milligrams

0.015 grams =

Cross Multiply

0.015grams × 1000 milligrams/ 1 gram

= 15 mg

Therefore, the concentration in mg/ml of 15% m/v of Bepotastine besilate (BEPREVE) ophthalmic solution is 15mg/ml

The expanded form for 300684 can be written with only 4 add ends. Explain how this is possible for a number with 6 digits

Answers

Answer:

This can be because our number, 300,684, has only four digits different than zero.

Then we can write this number as:

300,684 = 300,000 + 600 + 80 + 4.

So we add only 4 terms.

So when we write a number in this form, we will have the same numbers of terms in the addition that the number of digits different than zero in our original number.

Write the following number in standard form.
one hundred four billion, twenty-seven thousand, five hundred seventy-one
140,027,000,571
140,270,571,000
104,000,027,571
104,000,270,571

Answers

Answer:

The third one, 104,000,027,571

Step-by-step explanation:

The first and second ones are not the answers because the problem does not say one hundred forty billion.

The last one is not the answer because the problem doesn't say two hundred seventy thousand.

Thus leaving the third one, which fits the description of the number.

Factor this trinomial 4x^2-6x-10 If you can please try to show me how to do it.

Answers

Answer:

[tex]=2(2x-5)(x+1)[/tex]

Step-by-step explanation:

So we have the trinomial:

[tex]4x^2-6x-10[/tex]

First, factor out a 2:

[tex]=2(2x^2-3x-5)[/tex]

Now, factor within the parentheses.

To do so, we want to find two numbers. When multiplied, these two numbers must equal (a)(c) and when added, they must equal b

(a)(c) is 2(-5) or -10 and b is -3. So, we want two numbers that when multiplied together gives -10 and when added gives -3.

-5 and 2 works. Therefore:

[tex]=2(2x^2-3x-5)[/tex]

Replace -3x with 2x and -5x:

[tex]=2(2x^2+2x-5x-5)[/tex]

Factor out a 2x for the first two terms. And factor out a negative 5 for the remaining two:

[tex]=2(2x(x+1)-5(x+1))[/tex]

Grouping:

[tex]=2(2x-5)(x+1)[/tex]

And we're done!

PLEASE HELP ASAP! Far away on the horizon, we saw the tiny figures of a lonely traveler and his mule ______ into the sunset. A. Receed B. Famished

Answers

Answer:

Recede

Step-by-step explanation:

Famished means extremely hungry

Recede means go or move back or further away from a previous position

Answer:

Recede

Step-by-step explanation:

So let's look at the meanings of these two words.

Recede: To go or move back backward; become more distant.

Famished: Severely suffering from hunger.

So now you can see that recede is the word that makes more sense in the blank.

Far away on the horizon, we saw the tiny figures of a lonely traveler and his mule Recede into the sunset.

Hope this Helps!

What is the domain in interval notation?

Answers

Answer:

The answers are all real numbers where x<2 or x>2. We can use a symbol known as the union, ∪,to combine the two sets. In interval notation, we write the solution:(−∞,2)∪(2,∞). In interval form, the domain of f is (−∞,2)∪(2,∞).

what is -1/3 + (-5/6) step by step

Answers

Answer:

[tex]-\frac{7}{6}[/tex]

Step-by-step explanation:

Change -1/3 to match denominators with -5/6: 3 × 2 = 6, -1 × 2 = -2Re-write the expression: -2/6 + (-5/6)Simplify: -2/6 - 5/6[tex]-\frac{2}{6} - \frac{5}{6} = -\frac{7}{6}[/tex]  

I hope this helps!

Answer:

-7/6

Step-by-step explanation:

-1/3=-2/6

-2/6-5/6=-7/6

Which number is the same distance from 0 on a number line as 3/2 answers -3 -3/2 -2/3 2/3 3

Answers

Answer: -3/2

Step-by-step explanation:

To find its distance away from 0, then just find its opposite.

On the number line if you graph 3/2,  its opposite will be -3/2

NEED HELP ASAP (30Points!!) Which answers are examples of the Law of Syllogism? Select each correct answer. A) If there is a children’s movie playing at the cinema, Maria’s mother will take her to see it. When Maria’s mother takes her to the movie, she buys Maria popcorn. Therefore, if there is a children’s movie playing at the cinema, Maria’s mother will buy popcorn for Maria. B) If a square is a rectangle and if a rectangle is a parallelogram, then a square is a parallelogram. C) If a quadrilateral is a rectangle with 4 equal sides, then it is a square. Quadrilateral ABCD is a rectangle with 4 equal sides. Therefore, quadriateral ABCD is a square. D) Sally goes to the mall every Saturday. Today is Saturday. Therefore, Sally will go to the mall today.

Answers

Answer:

The correct answer is: (just took the test)

if a square is a rectangle and if a rectangle is a parallelogram, then a square is a parallelogram

if there is a children’s movie playing at the cinema, Maria’s mother will buy popcorn for Maria

Step-by-step explanation:

For the given answers the answers that follow the law of syllogism is options A and  B.

Given that,
4 statement is given, and we have to pick the statement that follows the low of syllogism.

What is arithmetic?

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,

Here
There are only two statements that are following the law of syllogism. ie.

A. If there is a children's movie playing at the cinema, Maria's mother will take her to see it. When Maria's mother takes her to the movie, she buys Maria popcorn. Therefore, if there is a children's movie playing at the cinema, Maria's mother will buy popcorn for Maria.

B. If a square is a rectangle and if a rectangle is a parallelogram, then a square is a parallelogram.

C. and D. are invalid statement because it does not follow the Law of Syllogism.

Thus, for the given answers the answers that follow the law of syllogism is options A and  B.

Learn more about arithmetic here:

brainly.com/question/14753192

#SPJ2

Find the slope of the line containing the pair of points. (5,-7) and (-4,-4)

Answers

Answer:

1/-3

Step-by-step explanation:


Check each equation whose graph is the line that
contains the points (4, -7) and (1,5).
y=-4x + 9
y=-4x – 23
y-1 =-4(X-5)
y + 7 = -4(x – 4)
4x + y = 9
DONE

Answers

Answer:

Points P ( 4 , - 7 ) and  Q ( 1 , 5 ) belong to the equations:

1  ;  4  ;  and  5

Step-by-step explanation:

Equations 1 ; 4 and 5 are the same equation

Equation 1    y  =  - 4*x + 9

Equation 4

y + 7 = - 4 * ( x - 4 )   ⇒  y + 7  = - 4*x + 16   ⇒ y = - 4*x - 7 + 16

y = -4*x + 9

Equation 5

4*x + y = 9    ⇒ y = - 4*x + 9

Now for the equation y = - 4*x + 9

P ( 4 , -7)

For x = 4    y = - 4*(4) + 9     ⇒  y = - 16 +  9    ⇒  y = - 7

Then point P is in the line  y = - 4*x + 9

Point Q (1 , 5 )

For x = 1    y = - 4 * ( 1) + 9     ⇒  y = - 4 + 9    ⇒  y = 5

Point Q is in the line y = - 4*x + 9

Equation 2

y = - 4*x - 23

Point P ( 4 , - 7 )

For x = 4       y  = 16 - 23   y  = - 7

Point P is in the line

Point Q

For x = 1     y = - 4 *(1) - 23      ⇒   y = - 27

Then poin Q is not in the line

Equation 3

y - 1 = - 4 * ( x - 4 )

y  - 1 =  -4*x + 16    ⇒   y  = - 4*x + 17

Point P ( 4 , - 7 )

For x = 4

y = - 16 + 17   ⇒ y = 1    

Point P is not in the line

And Point Q ( 1 , 5 )

For  x = 1

y = - 4* ( 1 ) + 17    ⇒  y  = 13    Q is not in the line

Answer:

1 4 5

Step-by-step explanation:

jus took the test

30 POINTS Type the correct answer in the box. Use numerals instead of words.

Answers

Answer:

15 rubber bands per day

Step-by-step explanation:

Other Questions
Plants make their own food. The chemical reaction for this process is shownin the equation below.CO2 + H2O + energy C6H12O6 + O2What are the products in this chemical reaction?O A. CH1206 + energyO B. H2O + energyO c. C&H 206 + O2O D. CO2 + H20 What is 7.96 repeating as a mixed number in simplest form Observations that deal with descriptions that cannot be expressed with numbers are called? PLEASE HELP!! ASAP NOWWWW Two races that a student runs every year are the 1492-mile race in his hometown and the -meter race in his college town. Complete parts (a) through (d) below. Enfoque: Singulary Plural. Composition Activity MODELO: el nmero: los nmeros 1. unas computadoras: ____________ 2. el hombre: ___________ 3. un problema: ____________ 4. los mapas: ___________ 5. una mujer: ____________ 6. el lpiz ______________ 7. una nacionalidad _____________ 8. los autobuses _____________ Plzzz help !!!!!! Plzzzz Identify which of the following factors are density-dependent or density-independent.---- Earthquake----- Disease----- Food----- Plz help! Ive been stuck on this for hours!!!! Which of the following is an example of nonassertive behavior in a Western culture?A. Briefly gathering your thoughts before respondingB. Avoiding eye contact when talking to someoneC. Folding hands while talkingD. Apologizing for mistakes and moving on with the conversation A basketball concession stand sells soda for $1.50, a bag of popcorn for $.50, and a candy bar for $1.25. At one game, 17 fewer candy bars were sold than bags of popcorn. That same night, the number of sodas sold was 7 more than the number of candy bars and bags of popcorn sold altogether. If the concession stand made $130 that night, how many of each item were sold? Who was the leader of the huguenots? Middle schoolers help!!!!!!!Witch expresion has the same value has the model bellow! Is 7.87400787401 a rational or irrational number? Which of the following nations below could be "Identified" as a nation that has not implemented the metric system? (Click all that apply) Group of answer choices Russia China Liberia United States Myanmar Which is true for a car moving around a circular track with constant speed? 1. It has zero acceleration2. it has an acceleration directed toward the center of its path3. it has an acceleration directed away fromt he center of its path4. it has an acceleration with a direction that cannot be determined from the information given5. it has an acceleration component in the direction of its velocity. If you do not have enough time to complete a full workout, you should:A. Cut the cool-down portion short.B. Skip the warm-up and cool-down portions altogether.C. Cut the warm-up portion short.D. Cut the exercise portion short. 1. Read the excerpt. Determine the word meanings by using context. Then, choose the best answer. In the phrase, the iron of war had entered into their souls, the author is suggesting the children were eating and drinking heavy metals the townspeople to train to fight the effects of war were coming upon them the soldiers had come to kill them What is the product of (-6)(-7)(-1)1420 140 42 The students plan to eat lunch at a park. Each table can only seat 6 studIf there are 48 students, how many tables are needed? Question #5What is a sphygmomanometer?An increase in blood pressureAn instrument used to measure blood pressureWritten output charting blood pressureA condition that causes blood pressure to fall