The age of the father is 42 and the age of the son is 9. At what age, will the father be twice old as the son?

(Solve by equation system.)

Answers

Answer 1

Answer:

24

Step-by-step explanation:

42 + x = 2 (9 +x) (solve for x)

42 + x = 18 + 2x

42 -18 = 2x -x

24 = x

42 + 24 = 66

9 + 24 = 33

When the man turns 66, his son will be 33, or half his age.


Related Questions

The owners of an amusement park charge an admission fee, c, in dollars for children and an admission, p, in dollar for adults. They sold 500 child tickets and 800 adult tickets. Enter an equation that represents the total amount in dollars, t, collected from sale of tickets

Answers

Answer:

t = 500c + 800p I hope this helps

A school principal is buying chairs and desks from a furniture supplier.
The chairs cost $110 each.
The desks cost $70 each.
The principal wants to buy at least 100 pieces of furniture.
The principal wants to spend no more than $9,400.
Which system of inequalities can be used to determine the possible numbers of chairs, c, and desks, d, the principal can buy?
Jc+ds 100
110c + 70d 29,400
6
c+d s 100
70c + 110d 29,400
c+d2 100
moog10/0
d
100
70c + 110d s 9,400

Answers

Answer:

I think the answer would be C!

Step-by-step explanation:

I am taking the test now, I think that would be the only one that makes sense. I am sorry if I am wrong.

Pat and Julie share some money in the ratio 2:5 Julie gets £45 more than Pat. How much money did Pat get? (show working please if you can thanks) ​

Answers

Answer:

4.58cm

Step-by-step explanation:

mark me brainliest!!

A computer's normal price is $1400. The shop is now offering $130 discount. How many percent is the discount

Answers

Answer:

9% discount (i think im not the best at percentages sorry)

Step-by-step explanation:

since we already know how much we are getting off of the original price, we dont have to subtract anything

so you would divide this price, 130, from 1400

130/1400= 0.0928

then you would have to muliply this number by 100

0.0928 x 100= 9.28

and you would just round to the nearest number which is 9

i hope this is right sorry if it isnt

Question: A computer's normal price is $1400. The shop is now offering $130 discount. How many percent is the discount

Answer : 90.7%

What is the product

(y^2+3y+7)(8y^2+y+1)

Answers

Answer:

the last option

Step-by-step explanation:

Solve for the equation -72 =8(y-3) show your work PLS HELP ME ASAP!!!!!!!!!!

Answers

Answer: y=-6

Explanation:
-72=8(y-3).
-72=8y-24. expand the bracket
-48=8y. add 24 on each side
y=-6. divide by 8

The town of Springfield had a population, P, of 100,000 in 2008. The population grew by 5% per year from 2008 to 2011. If x is the number of years since 2008, which expression describes this growth?

Answers

Answer:

100,000+.05^x=P

Step-by-step explanation:

The expression which best described the total population is P = 100000 × (1.05)ˣ; 1 ≤ x ≤ 3.

What is the pattern?

A pattern is a specific arrangement of numbers or any term which will follow a specific code or hint.

The hint which is present in a given pattern hides in the pattern only.

Total population P in 2008 = 100000

Total population In 2009 = 100000 + 5% of 100000

⇒ 100000 + 0.05 × 100000

⇒ 1.05 × 100000

Total population P in 2010 ⇒

⇒ (1.05 × 100000) + 5% of (1.05 × 100000)

⇒  (1.05 × 100000) + 0.05 × 1.05 × 100000

⇒ 1.05 × 100000[ 1 + 0.05]

⇒ 1.05² × 100000

So it will follow this series.

Therefore,

1.05 × 100000, 1.05² × 100000, 1.05³ × 100000

The generalized term is ;

P = 100000 × (1.05)ˣ; 1 ≤ x ≤ 3

Hence "The expression which best described the total population is P = 100000 × (1.05)ˣ; 1 ≤ x ≤ 3".

For more information about the pattern,

brainly.com/question/14013716

#SPJ2

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS

Answers

Answer:

least to greatest

7607

49470

591429

864464

Step-by-step explanation:

a like goes through the point (-4,-6) and the point (10,1) write the equation of the line intercept form

A.y=-2x+4
B.y=2x-4
C. y=1/2x-4
D.y=-1/2x-4

Answers

Answer:

I IM NOT 100 PERCENT BUT IT MIGHT BE A

Step-by-step explanation:

i think it might be B

because first, u do slope formula y2-y1 and x2-x1 so 1-(-6) and 10-1

then u get 7/14 which is 2 and then plug in the numbers like -4=2(-6)+b

and then you add 12 to -4 and get 8=b I think after this u divide and get 4

Determine the amount of money in a money market account providing an annual rate of 6.5 % compounded daily if the invested amount of $3,500 is left in the account for 5 years .

Answers

Answer:

this is the answer for the question=$4795.30



Keith fills an aquarium to a depth of

3/4

meters in 1 1/5

minutes.

What is the unit rate in minutes per meter?

Write your answer as a fraction or a mixed number in simplest form.

Answers

Answer:

  1 3/5 minutes per meter

Step-by-step explanation:

To find the rate in minutes per meter, divide the given minutes by the given meters:

  (1 1/5 min)/(3/4 m) = (6/5)×(4/3) min/m = 8/5 min/m

  = 1 3/5 minutes per meter

During lunch, Julio drinks 2 3/4 cups of milk. Alan drinks 3/8 cups of milk. Fernando drinks 1 1/6 cups of milk. How much milk do the 3 gentleman drink

Answers


The 3 gentleman drink 4.29166667 cups of milk

On a math test students must solve the inequality

Answers

Answer:

clasify your question

Step-by-step explanation:

Please help I will give brainliest.

Answers

Answer:

24(6) </= 200

Step-by-step explanation:

24(6) is less than or equal to 200 notepads, that are needed. Which is actually true. 144 is less than or equal to 200.

Vicky got her hair cut at Great Clips. She was quite pleased with her service so she left a 25% tip for her hair dresser which was $4.75. What is the cost of a hair cut at Great Clips?​

Answers

Answer:

19

Step-by-step explanation:

4.75 x 4 = 19

19 dollars for the haircut

Have an amazing day!

PLEASE RATE!


Meg is heading back to her car after a hike to Misty Falls. The waterfall is at an elevation of
4,000 feet, and the trail descends an average of 500 feet for every 1 mile she hikes. You can
use a function to approximate Meg's elevation after she hikes x miles.
write and equation for the function, if it is linear, write the form h(x)=mx+b, if it is exponential, write it in the form h(x)=a(b)^x

Answers

The linear function is given by h(x) = -500x + 4000

What is a linear equation?

A linear equation is in the form:

y = mx + b

Where y,x are variables, m is the rate of change and b is the initial value of y.

Let h represent the elevation after hiking x miles.

The waterfall is at an elevation of 4,000 feet, hence b = 4000

The trail descends an average of 500 feet for every 1 mile she hikes, hence m = -500

The linear function is given by:

h(x) = -500x + 4000

Find out more on linear function at: https://brainly.com/question/15602982

PLEASE EXPLAIN HOW TO DO THIS

Answers

The volume of any rectangular prism is length*width*height.

Based on the diagram:
length: 9km
width: 9km
height: 3km

9*9*3=243 km^3 (aka answer choice B)

what is 3c2+ 2c- 16?
factoring​

Answers

Answer:

( c - 2 ) ( 3c + 8 )

Solution:

In the given question, we have to factorise the equation:

3c² + 2c - 16

Therefore, by using the middle term splitting method:

This method is used in equations which are in the form of ax² + bx + c. Here, we split the middle term into two terms which on multiplying gives ac and on adding or subtracting gives bx .

➙ 3c² + 2c -16

➙ 3c² - 6c + 8c - 16

➙ ( 3c² - 6c )+ (8c - 16 )

➙ 3c( c - 2 ) + 8 ( c - 2 )

➙ ( c - 2 ) ( 3c + 8 )

Factorisation of a quadratic polynomial of the type ax² + bx + c where (a ≠ 1) .

To factorise ax² + bx + c, we have to find two numbers whose sum is equal to the coefficient of x and product is equal to the coefficient of x² and constant term.

Consider the factorisation of 3c² + 2c – 16 .

We have to find two numbers whose sum is +2 and product (3 × 16) = 48 .

Obviously, the two numbers are 6 and 8 .

[tex]{ \qquad \sf { \dashrightarrow{ 3c {}^{2} + 2c - 16 }}}[/tex]

So, We can write it as,

[tex]{ \qquad \sf { \dashrightarrow{ 3c {}^{2} + 8c - 6c - 16 }}}[/tex]

[tex]{ \qquad \sf { \dashrightarrow{ c (3c + 8) -2 (3c + 8) }}}[/tex]

[tex]{ \qquad \sf { \dashrightarrow{ ( c -2 )(3c + 8) }}}[/tex]

You stand at point C and look at an aquarium tank. Calculate the radius of the aquarium tank.

Answers

The radius of the aquarium tank is 8.25

how to say hi pls i need to know

Answers

Answer:

Step 1.

Say "hi"

k that's it

Answer:

U just say hey

Step-by-step explanation:

hope this helped

Pls, choose me as brainliest!

Can someone give me the answer please.

Answers

Answer:

11 17/21= 11[tex]\frac{17}{21}[/tex]

Step-by-step explanation:

What percent of 518 is 180? Round to the nearest whole #​

Answers

if we take 518 to be the 100%, what is 180 off of it in percentage?

[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 518&100\\ 180&x \end{array}\implies \cfrac{518}{180}=\cfrac{100}{x}\implies \cfrac{259}{90}=\cfrac{100}{x} \\\\\\ 259x=9000\implies x=\cfrac{9000}{259}\implies x\approx 35[/tex]

Which expression results when the change of base formula is applied to log subscript 4 baseline (x 2)? startfraction log (x 2) over log 4 endfraction startfraction log 4 over log (x 2) endfraction startfraction log 4 over log x 2 endfraction startfraction log x 2 over log 4 endfraction

Answers

When the change of base formula is applied to log subscript 4 baseline (x+2), the result is [tex]\dfrac{log(x+2)}{log4}[/tex].

What are the Properties of logarithms?

There are four basic properties of logarithms:

[tex]\rm log_aU+ log_aV = log_a(UV)\\\\log_aU - log_aV = log_a(\dfrac{U}{V})\\\\log_aU^n = n\ log_aU\\\\\log_ab = \dfrac{log_xb}{log_xa}\\\\[/tex]

When the change of base formula is applied to log subscript 4 baseline (x 2), the result expression will be,

[tex]\rm log_4(x+2)=\dfrac{log_{10}(x+2)}{log_{10}4}=\dfrac{log(x+2)}{log4}[/tex]

Hence, when the change of base formula is applied to log subscript 4 baseline (x+2), the result is [tex]\dfrac{log(x+2)}{log4}[/tex].

Learn more about Logarithms:

https://brainly.com/question/7302008

Answer:

a - StartFraction log (x + 2) Over log 4 EndFraction

Step-by-step explanation:

edge 2022

A bookstore has a shelf that is 27 1/2 inches long. Each book is 1 1/4 inches thick. How many books can fit on shelf

Answers

Answer:

34.375

Step-by-step explanation:

You first have to count and see how many times the selected number goes into the whole number

27.5 / 1 1/4 = 34.375 and if we remove the extra decimal 34.37

A family is purchasing a house and needs to finance a $195,000 mortgage from the bank with an annual percentage rate (apr) of 5.3%. the family is financing it over 30 years and making monthly payments. what is the monthly payment?

Answers

The monthly payment of the family is $1082.84.

Value of the mortgage P= $195,000

Annual Percentage Rate APR= 5.3%

Time n = 30 years = 360 months

What is the formula for monthly payment or EMI?

Monthly Payment = [tex]\frac{Pr(1+r)^n}{(1+r)^n-1}[/tex]

Where P = Amount of Mortgage

r = monthly rate of interest

n = tenure in months.

Put P = $195,000

r = APR/12= 5.3%/12

n = 360

So, EMI = $1082.84

Therefore, The monthly payment of the family is $1082.84.

To get more about EMI visit:

brainly.com/question/2151013

My bowling average for four games was 160.
Two of my games were 155 and 169.
What was the average of my other two games?

Answers

Answer:

Step-by-step explanation:

The average of 4 games was 160.  The average consists of the sum of all the scores, divided by 4:

(Sum of Games)/4

Sum of 2 games is (155 + 169) = 324

Lets let the sum of the two unknown  games be x.

(234 + x)/4 = 160

(234 + x) = 640

x = 316

x consists of 2 games, so their average is (316/2) = 158 per game for the other 2 games.

===============

Check:

(155+169+158+158)/4

(640/4) = 160 average for all games.

find the minimum or maximum value of the function. h(x)=-4x^2-4x+24

Answers

Answer:

the maxium value is 25 you can see this in the picture

Hope This Helps!!!

A costume closet contains 8 dresses, 3 shirts, 5 pairs of pants, and 4 hats. What is the probability of randomly selecting a hat from the costume closet

Answers

Answer:

I would say that it's a 1/4 chance.

Step-by-step explanation:

So...

I added the numbers

And got that

I'm sorry if it didn't help

im not sure if the highlighted one is correct please help

Answers

Answer:

yea it's correct complimentary below 90 degrees is complimentary angles.

Answer:

2nd option is correct

Step-by-step explanation:

Complementary angles sum to 90°

23° + 67° = 90°

These are complementary angles

factorize u(5v+35w)+s(-7v-49w)​

Answers

Answer:

5uv+35uw+7sv-49sw

Step-by-step explanation:

u(5v+35w)+s(7v-49w)

=5uv+35uw +7sv-49sw

You need to multiply the numbers in the brackets by the number in front of the bracket.

hope it helps !!!!!

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