Kevin is 3 times as old as
Daniel. 4 years ago, Kevin was 5 times as old as Daniel.
How old is Daniel now?

Answers

Answer 1

Answer:

Daniel is 8 years old now.

Step-by-step explanation:

From the word problem we can make the following two equations:

Let "K" be Kevin's age now and let "D" be Daniel's age now, then...

K = 3D

K - 4 = 5(D - 4)

Now we substate the value of K, and get...

K - 4 = 5(D - 4)

3D - 4 = 5(D - 4)

3D - 4 = 5D - 20

3D - 5D = - 20 + 4

- 2D = - 16

D = 8

Therefore Daniel is 8 years old now.


Related Questions

Find the integer that satisfies the inequality below.
Please help with a

Answers

Answer:a)6,7,8

d)8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30

Step-by-step explanation:

Someone please help me!!!!
Find the total area of the regular pyramid. 280sq. units 180 + 54^3 sq. units 360 + 54^3 sq. units 234^3

Answers

Answer:

180+54sqrt3

You have to use the formula that is contained within the lessons, the answer you should have before you format it like this is: 273.530743609

HELP ME WITH THIS PLS!!!!!!

Answers

Answer:

Step-by-step explanation:

[tex]x^{2} x^{2} \sqrt{x} \neq \lim_{n \to \infty} a_n \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right][/tex]

PMark for Review
5 The Raven Club sold tickets to the local fall festival. On day one, they sold 50 child tickets and 75 adult
tickets and the total was $525. On day two, they sold 45 child tickets and 65 adult tickets and the total
was $460. What was the cost of the adult tickets?

Answers

Answer:

Y = 6

Step-by-step explanation:

On the first day of ticket sales the school sold 3 adult ticket and 8 student tickets for a total of $72. The school took in $152 on the second day by selling 7 adult tickets and 16 student tickets. How much is a student ticket?  

Day 1: 3x + 7y = 72

Day 2: 7x + 16y = 152

This becomes a system of equations.

3x+8y=72

3x+8y+−8y=72+−8y (Add -8y to both sides)

3x=−8y+72

3x/3 =  −(8y+72)/3

X = (-8/3) y + 24

Substitute  (-8/3) y + 24 for x in7x+16y=152:

7(-8/3 y + 24) + 16y = 152

-8/3 y + 168 = 152 (Simplify both sides of the equation)

-8/3 y + 168 − 168 = 152 + (−168) (Add -168 to both sides)

-8/3 y = -16

(-8/3 y)/(-8/3 y) = -16/ -8/3 y (Divide both sides by (-8)/3)

y = 6

WILL MARK BRAINLEST
The mean of 16 items was found to be 30. On rechecking, it was found that two items were wrongly taken as 22 and 18 instead of 32 and 28 respectively. Find the correct mean. Round to the nearest Hundredth.

Answers

Answer: The answer is 31.25 because The mean of 16 items was found to be 30. So once you checked, it was that 2 items were wrongly taken as 22 and 18 instead of 32 and 28 respectively. Sum = mean  no of items = 30  16 = 480

(32 +28) – (22 + 18) = 20

Correct mean =  = 31.25

Step-by-step explanation: My apologize that I took long I hope this helps.

What is the distance between (-3,7) and (6,1)

Answers

Answer:

3[tex]\sqrt{13}[/tex]

Step-by-step explanation:

(✿◡‿◡) <--- she wants brainliest

Christa wrote 1 page in 2/3 hour. Which is Christa's writing rate per hour?

Answers

Answer:

3/2 pages per hour

Step-by-step explanation:

1 : 2/3

= 3/2 : 1

in 1 hour christa writes 1 and 1/2 of a page

write a polynomial equation in standard form with roots of -3 and 4

Answers

Answer:

I don't know the answer

Step-by-step explanation:

the most seats in guyan

HELP ASAP PLS MY MATH TEACHER IS HER

Answers

Answer:

b

Step-by-step explanation:

5 faces 6 vertices goodluck

Answer:

second answer

Step-by-step explanation:

r/19 > -1
please help solve for R

Answers

Answer:

Step-by-step explanation:

[tex]\frac{r}{19}>-1[/tex]

Multiply both sides by 19

[tex]\frac{r}{19}*19>-1*19 \\\\r > -19[/tex]

If the sidewall of a cubic structure have length 7m , then find the total surface area.
is this jhit right?​

Answers

Answer:

Surface area of the cube = 294 m²

Step-by-step explanation:

Sidewall of a cube measures in length = 7 m

Formula for the surface area of a cube = Sum of the areas of all six sides of the cube

= 6 × (Side)²

= 6 × (7)²

= 6 × 49

= 294 m²

Therefore, surface area of the cube is 294 m².


Ken bought 2 video games and 1 DVD for a total of $105. Jerome bought 1 video game and 4 DVDs for a total of $80. Which system of equations can be
used to find the cost, in dollars, of each video game (v) and each DVD (d) at the store?

Answers

Answer:

I think that the Linear system of equations can be used to find the cost.

Step-by-step explanation:

Answer:

2v + 1d = 105

and

1v + 4d = 80

Step-by-step explanation:

ken : 2v + 1d = 105

Jerome : 1v + 4d = 80

1v + 4d = 80 Try to get a video games by its self

   - 4d    -4d

1v = 80 - 4d    

Plug into kens equation..

2(80 -4d) + 1d = 105

160 - 8d + 1d = 105

-160                 -160

-7d = -55

/-7        /-7

d = 7.86 (rounded)

Plug into Jeromes equation

1(7.86) + 4v = 80

- 7.86            - 7.86

4v = 72.14

/4     /4

v = 18.035 (round = 18)

helpppppppppppppp hutrryyyyyy for BRIANLESSSTTTTT 10 points !!!!!!!!!

Answers

Answer:

32

Step-by-step explanation:

32 hope that helps as

Simplify the expression 7h +(-5.9d) – 17+4d -3.4h

Please help me need it done ASAP

Answers

Answer:

−1.9d+3.6h-17

Step-by-step explanation:

You just need to combine like terms ;)

Hope it helps, let me know

Line I is parallel to line m. If the measure of <6 is 75 , what is the measure of <1 ??

Answers

Answer:

∠6=∠2 ( corresponding angles)

∠1+∠2= 180°(Linear Pair)

∠1= 180- 75= 105°

Step-by-step explanation:

order from least to greatest 3.2 ,3.14, 19/7, sqrt (14)

Answers

Answer: 19/7 ,3.14, 3.2

Step-by-step explanation: Hope this helps Have a brilliant day of learning!

Melanie makes 12 out of 16 foul shots. What is the experimental probability that she will miss her next foul shot?

Answers

25% probability she misses her nest fuel shot

What is 6/5 be cause I am having a hard time

Answers

Answer:

Step-by-step explanation:

6/5 = 1⅕ or 1.2

Answer:

decimal form 1.2

mixed form: 1  1/5

Step-by-step explanation:

I'm not sure which answer you were looking for

What is the measure of the missing angle

Answers

Answer:

45 degrees xxxxxxxxxx

Step-by-step explanation:

simple geo

You get a student loan from the New Mexico educational assistance foundation to pay for your educational expenses this year . Find the interest on the loan if you borrowed $5,000 at 5% interest for 1 year.

Answers

Answer:

the interest gathered on the loan is $250

Step-by-step explanation:

5% interest on $5,000 for one year would be $250

the total amount wlike be $5250 but the question seems to only ask for the interest

convert 5% to a decimal to multiply to find interest

0.05•5000 gives us the interest for the year

hope this helps <3

Helppp Bc I don’t know what to do

Answers

Answer:

Option (b) will be the correct answer.

Step-by-step explanation:

190×10⁸

1.9×10²×10⁸

1.9×10¹⁰

Answer:

B

Step-by-step explanation:

190 x 10^8 = 19000000000

1.9 x 10 ^10= 19000000000

Find the solutions of the inequality and complete the statements. The solutions of the inequality include all numbers . There are solutions of the inequality.

Answers

Answer:

All numbers greater than 40;

Infinite

Step-by-step explanation:

Given the inequality :

h > 40

The solution to the inequality is any number, h which makes the inequality expression true.

Hence, it includes all numbers, h greater than 40 ; beacuase every number greater than 40 represents a true inequality statement.

The number of solutions to the inequality is infinite because the number of solution is not confined to a certain specify. Range.

Answer

It's A and C  

Step-by-step explanation:

I just finished my test

Find the value of 1.999.... in the form of p
q
where p and q are integers.

Answers

1.999… is exactly the number 2.

Let x = 1.999… . Then 1000x = 1999.999… . Subtract x from this to eliminate the fractional part, and you get

1000x - x = 1999.999… - 1.999…

1000x - x = 1999 - 1

999x = 1998

x = 1998/999 = 2/1 = 2

So p = 2 and q = 1.

The table below lists some of the characteristics of the houses on Katrina’s street.


Characteristics of Homes For Sale on Katrina’s Street
Bedrooms
Acres of land
Sale price
Appraised value
Property tax
2
0.17
$230,000
$200,000
$1,220
2
0.20
$210,000
$220,000
$1,232
3
0.20
$275,000
$250,000
$1,400
4
0.24
$275,000
$275,000
$1,540
4
0.52
$360,000
$310,000
$1,736
4
0.75
$350,000
$320,000
$1,792
5
1.23
$375,000
$350,000
$1,960

Which relationship describes a function?
(bedrooms, sale price)
(acres of land, appraised value)
(sale price, bedrooms)
(appraised value, property tax)

Answers

Answer:

the answer is actually D

Step-by-step explanation:

this is for the the perso above .......

its ashamed what u do for points there r ppl out there that rlly need help :)

Answer:

D) got it on edge

Step-by-step explanation:

Help pls ASAP!!! THX

Answers

Answer:

a concave lens is exactly the opppostie with outer surfaces  curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.

Step-by-step explanation:

find the solution of given expression

[tex] \sqrt{365 \times 4 \times 365} [/tex]

Answers

Answer:

√{365×4×365}=√(365²×2²)=±(365×2)=±730

Answer:

[tex]\sqrt{365\cdot \:4\cdot \:365}=\sqrt{532900}[/tex]

[tex]=\sqrt{730^2}=730[/tex]

I really need help with this does anyone mind expkaining

Answers

Answer:

I remember seeing this Question sombody answered 108 the 3rd option and it was correct but I chose 13 and it was wrong lol good luck

Question
(01.01 LC)
What should be added to 3 to make the sum 0? (1 point)
a
-3
b
-2
с
0
d
3

Answers

-3 because if you add -3 to 3 you get 0

reposting again
i will give brainliest to best answer

Answers

Answer:

the answer is c plz trust

Step-by-step explanation:

PLEASE HELP ME! 50 POINTS! I WILL GIVE BRAINLIEST! Decide whether the table could represent a proportional relationship. If the relationship could be proportional, what would be the constant of proportionality?

Bettie's Boutique is having a 20% off sale.
|original price| sale price|

—————————————

|$15. | $12. |

—————————————

|$25. |$20. |

—————————————

|$35. |$28. |

————————————-

Answers

Answer:

15 and 12 makes a pattern of -3

25 and 20 makes a pattern of -5

35 and 28 makes a pattern of -7

Step-by-step explanation:

5 x 3=15

5 x 5=25

5 x 7=35

Answer:14

Step-by-step explanation:

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