david is 5 years older than jonathan. in 6 years, double jonathans age added to quadruple davids age will equal to 128. what is each of their current ages?

Answers

Answer 1

Answer:

David a 17 ans et Jonathan a 12 ans  

Step-by-step explanation:

David aura 23 ans dans 6 ans et Jonathan aura 18 ans dans 6 ans

Donc 23 * 4 = 92 et 18*2 = 36 comme 92+36=128 on trouve leurs ages dans 6 ans et on soustrait ensuite 6 à leurs ages dans 6 ans pour trouver leurs ages aujourd'hui


Related Questions

HELP I'LL GIVE BRAINLIEST TO THE CORRECT ANSWER!!! THIS IS TIME PLZ HELP!!!
(look at the screenshot)
Ruby is visiting San Francisco. From her hotel she walks 2 blocks east and 4 blocks north to a coffee shop. Then she walks 6 blocks west and 5 blocks north to a museum. Where is the museum in relation to her​ hotel? SHOW YOUR WORK!!!

The museum is __ blocks(s) __ (east or west) and __ block(s) (north or south) of her hotel.

Answers

Answer:

2 blocks west and 5 steps north

Step-by-step explanation:

4 blocks west. (6 west minus 2 east)

9 blocks north. (4 north plus another 5 north)

Grab a piece of graph paper to get a visual

HELP! 10 Point for helping!
Anwer now!
FAST!

Answers

Answer:

(8,3)

Step-by-step explanation:


21. Given that f(x)= x^3– x² + 5x and g(x)= x^3 +5x^2 –2 determine
(g-f)(x)

Answers

Answer:

(g - f)(x) = 6x² - 5x - 2

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define

f(x) = x³ - x² + 5x

g(x) = x³ + 5x² - 2

(g - f)(x) is g(x) - f(x)

Step 2: Evaluate

Substitute:                    (g - f)(x) = x³ + 5x² - 2 - (x³ - x² + 5x)Distribute -1:                 (g - f)(x) = x³ + 5x² - 2 - x³ + x² - 5xCombine like terms:    (g - f)(x) = 6x² - 5x - 2

Name the following note!!

Answers

Answer:

Maybe this will help btw not math

Step-by-step explanation:

one quarter of a number is 6.
work out one-third of the number.

tyyy

Answers

Answer:

8

Step-by-step explanation:

6 / 1/4 = 24, So to find 1/3 we do 24 / 3 which is 8

:D

Answer:

8

Step-by-step explanation:

HELP ASAP NEEDS TO BE DONE TODAY.
Which expression is equivalent to 27 + 45?

A. 8(3+6)

B. 8(19+ 37

C. 9(3+5)

D. 9(18 + 36)​

Answers

Answer:

A

Step-by-step explanation:

if you did 6+3=9

8x(9)=72

"27+45=72"

Answer:

C

Step-by-step explanation:

27 + 45 = 72

9(3 + 5)

9 x 3 = 27

9 x 5 = 45

27 + 45

Noah invested $2,500 in an account paying 4.5% simple interest. How much was his account worth after 5 years?

Answers

Answer:

$3,062.50 after 5 years.

Step-by-step explanation:

The answer is 3,062.50 because 4.5% of 2,500 is 112.5 and 112.5 multiplied by 5 is 562.5 and 2,500 plus 562.5 is 3,062.50.

P.S Can I have brainliest?

hhhhhhhhhhhhhhellllllllllllllllllloooooooooooooppppppppppppppppp

Answers

Answer:

The answer is C. -3/4x+4

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

y=(-3/4)x + 4

take any point on the line and go up 3 than left 4 and you will end up on the line again because slope is rise/run

the slope is negative because from left to right the line is downhill

Need help ASAP I’m trying to understand

Answers

Step-by-step explanation:

5a+4a=180

a=20

5a=X

X=5×20

=100°

Answer:

100 degrees

Step-by-step explanation:

The opposite angle will always be the same. since the opposite is 5a, then x = 5a.  x is 5a, and 9a is 180 degrees so x=180(5/9), which is equal to 100 degrees.

How many ways are there to
adjust two quantities so that they are in a
given proportional relationship?

Answers

Answer:

2 or 3

Step-by-step explanation:

Transformations
1. The vertices of triangle STU are S(1, -2), T(5,-2) and U(1, -4). Find the coordinates of the
image of triangle STU after a translation using the rule (x, y) — (x - 1, y + 4) and a reflection
over the y-axis.

Answers

Answer:

a

0

=

44

 

XXX

a

1

=

?

XXX

a

2

=

?

XXX

a

3

=

?

XXX

a

4

=

92

Step-by-step explanation:

An invested sum of $600000 to generate simple interest $3.9000 at 3 (whole number) 1/4% per annum if you don't know please don't answer​

Answers

Answer:

20 years

Step-by-step explanation:

We can find the time it took to invest

Using the formula for calculating simple interest as shown

SI = PRT/100

Given

Principal P =  $600,000

SI = $39,000

Rate R = 3 1/4%

Required

Time

Substitute

39,000 = 600,000*13/400 * T

39,000 * 400 = 600,000*13 * T

15,600,000 = 7,800,000T

T = 15,600,000/7,800,000

T = 20

Hence it took 20years for the sum invested to generate the interest

Sally has three tiles each tile has a number on it sally puts the three tiles down to make a number each number is made with all three tiles how many different numbers can sally make

Answers

Answer:

6

Step-by-step explanation:

123

132

213

231

312

321

which totals to 6 overall combinations

Write the word sentence as an equation. Then solve.

The product of 15 and a number x is −75.

Equation:

Solution: x=

Answers

Answer:

Equation: 15x= -75

x= -5

Step-by-step explanation:

15x= -75

Divide both sides by 15 to isolate the variable x

-75÷15= -5

Check

15× -5= -75

Hope this helps!

What is the solution to
2x + 8 < 3x - 4?


A) X < 12
B) X > 12/5
C) X > 12
D) X < 12/5

Answers

Answer:

A

Step-by-step explanation:

Answer:

The answer is choices C.

Step-by-step explanation:

Let's solve your inequality step-by-step.

2x+8<3x−4

Step 1: Subtract 3x from both sides.

2x+8−3x<3x−4−3x

−x+8<−4

Step 2: Subtract 8 from both sides.

−x+8−8<−4−8

−x<−12

Step 3: Divide both sides by -1.

−x/-1<−12/-1

x>12

please answer the following ​

Answers

Answer:

it 10

Step-by-step explanation:

square root of 58 ... to solve using the pythagorean theorem use the formula: a^2+b^2=c^2 . so plug in how many blocks the first point is to the second point. u should get 7^2+3^2=c^2 . so you should get 58=c^2. do the square root of 58 and you should get the answer b !!!

List 4 equivalent to 3/7

Answers

Step-by-step explanation:

[tex]\dfrac{3}{7}=\dfrac{3}{7}\cdot\dfrac{2}{2}=\dfrac{6}{14}\\\\\dfrac{3}{7}=\dfrac{3}{7}\cdot\dfrac{3}{3}=\dfrac{9}{21}\\\\\dfrac{3}{7}=\dfrac{3}{7}\cdot\dfrac{4}{4}=\dfrac{12}{28}\\\\\dfrac{3}{7}=\dfrac{3}{7}\cdot\dfrac{5}{5}=\dfrac{15}{35}\\\vdots\\\\\dfrac{3}{7}=\dfrac{3}{7}\cdot\dfrac{10}{10}=\dfrac{30}{70}\\\vdots\\\\\dfrac{3}{7}=\dfrac{3}{7}\cdot\dfrac{100}{100}=\dfrac{700}{300}\\\vdots[/tex]

Use the point-slope equation to identify the slope and the coordinates of a point
on the line y - 4 = {(x - 1).
The slope of the line is
A point on the line il

Answers

Answer:

A point on the line is m=1/2

A point on the line is (1,4)

Step-by-step explanation:

five and six eights + four and 4 fiths please answer ill give 10 points

Answers

Answer:

29/5

Step-by-step explanation:

Answer:

10 11/20

Step-by-step explanation:

ten and eleven twentieths

Find all real numbers x that satisfy the equation (x-4)(x-8) = 12.

Answers

Answer:

x=10

Step-by-step explanation:

(10-4)(10-8) = 12

(6)(2) =12

12 = 12

The required real number that satisfies the given expression is x=10, x= 2.

Given that,
To determined the real numbers x that satisfy the equation (x - 4)(x - 8) = 12

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,

(x - 4)(x - 8) = 12

x²-12x+32=12
x²-12x+20=0
(x - 10)(x -2) = 0

Thus, the required real number that satisfies the given expression is x=10, x= 2.

Learn more about simplification here:

https://brainly.com/question/12501526

#SPJ2

Factor the following expression 2x^2 - 11x+12

Answers

Answer:

(2x-3)(x-4)

Step-by-step explanation:

25 - so
Is the following number rational or irrational?

Answers

Answer:

25 is a rational number

Step-by-step explanation:

This is because, a rational number needs to be in p/q form, where q ≠ 0

This is possible for 25, 25 in p/q form =

25/1

If my answer helped, kindly makr me as the brainliest!!

Thank You!!

(Assuming the number is 50) yes, 50 is rational because it can be expressed as the quotient of two integers: (50 divided by 1).

How do you convert r=8 cos(θ) into cartesian form?

Answers

As relation between Cartesian coordinates (x,y) and polar coordinates (r,θ) is given by x=rcosθ and y=rsinθ i.e. r2=x2+y2 .
As r=8cosθ can be written as.
r×r=8rcosθ or.
r2=8rcosθ or.
x2+y2=8x.
Jul 13, 2016
The collection of monster that are in your closet is 10

Write 8/5 as a mixed number.

Answers

Answer: 1 3/5

Step-by-step explanation:

5/5 = 1

There is a remainder of 3/5.

Combine these two pieces to get the whole, 1 3/5.

The answer is 1 and 3/5

which equations are linear functions? select all that apply

Answers

Answer: 1, 3, and 5

Step-by-step explanation:

AQRS contains the points: Q (4,2) R (5.1) S (3.7). If the triangle is reflected across the y-axis, what will she?

Answers

Answer:

The answer is (-3, 7) hope this helps

Step-by-step explanation:

Answer:If it's reflected,then it should be (-3.7).

Step-by-step explanation:

kaley read 12 1/4 pages in 1/3 hours. How many can she read in 1 hour?

Answers

Answer:

15 1/4 pages im thinking please correct me if im wrong

Step-by-step explanation:

HELP ME PLS IF YOU DO I WILL GIVE YOU BRAIN EST :)

Answers

Answer:

2b( 12 - 17a)

Step-by-step explanation:

This is the answer because:

1) Fator 2b out of 24b - 34ab:

2b x 12 = 24b = 24b ÷ 2b = 12

2b x 17a = 34ab = 34ab ÷ 2b = 17a

Therefore, the answer is 2b( 12 - 17a).

Hope this helps! :D

Answer:

2b( 12 - 17a)

Step-by-step explanation:

good? same test i have and i fail the said this was the answer

ana runs a merchandiser store. she wants to buy 500 notebooks for her store. she will get 300 notebooks for $2500. the next 200 notebooks are for $4 per notebook. if the total cost for notebook is $3300 and 12%discount is given then the total cost for notebooks is​

Answers

Answer:

5000

Step-by-step explanation:

i worked the problem out and got 100%

NEED HELP DESPERATE. A recipe requires 1 cup of milk for every 4 cups of flour. Choose a linear equation that describes the proportional relationship.
A.
B.
C.
D.

Answers

Answer:

A

Step-by-step explanation:

It goes up by 4 for each cup of flour and over 1 for every cup of milk. Please Brainliest

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