Kevin is 3 years older than twice Jane's age. The sum of their ages is 39. How old is each person?

Answers

Answer 1

Answer:

39 - 3 = 36

36/3 = 12

j = 12

Step-by-step explanation:


Related Questions

Find the quotient 3/5 divided by 8

Answers

Answer:

A.

Step-by-step explanation:

Answer: The answer is A 3/40

Step-by-step explanation: [tex]\frac{3}{5} :8=\frac{3}{5} * \frac{1}{8} =\frac{3*1}{5*8} =\frac{3}{40}[/tex]

Solve the system of equations 2x + 2y = 6 and 2y - x = 12 using any method.

Answers

2y + 2x = 6
2y - x = 12
Subtract
3x = -6, x = -2
2(-2) + 2y = 6
-4 + 2y = 6
2y = 10, y = 5
Final solution: x = -2, y = 5

Answer:

Step-by-step explanation:

2x + 2y = 6

-2x + 4y = 24

6y = 30

y = 5

10 - x = 12

-x = 2

x = -2

(-2, 5)

Which expression is equivalent to -3(4x - 0.50)?

A. -12x - 1.50
B. -12x + 1.50
C. -12x - 2.50
D. -12x - 3.50

Answers

Answer:

It's the B

Step-by-step explanation:

Multiply - 3 by 4x = - 12x

Multiply - 3 by - 0.5 = 1.5

Hope this helps, have a good day

How would you find x?

Answers

Answer:

A

Step-by-step explanation:

x=7

The system of equations is graphed on the
coordinate plane.
y = x - 1

y = -2x - 4

Enter the coordinates of the solution to the
system of equations in the boxes.
(___,___)

Answers

-1,-2 because they intersect

can someone plz help me! plz i also added some more points plz help

Answers

Answer:

15x + 12(10 - x) = 1417 and 3

Step-by-step explanation:

The number of people who have two-course meal is (10 - x)

Correct equation is:

15x + 12(10 - x) = 141

Solving for x:

15x + 120 - 12x = 1413x = 141 - 1203x = 21x = 7

Answer:

Number who have three-course meal = 7Number who have two-course meal = 3

Answers:

1) 15x + 12(10 - x) = 141

2) 7 and 3

15x + 12(10 - x) = 141

15x + 120 - 12x = 141

3x = 141 - 120

3x = 21

x = 7

12 points please help :(

Answers

rAnswer is B if im right

Find the value of n that makes DEF-XYZ when
DE = 4, EF = 5, XY = 4(n + 1). YZ = 7n - 1, and

Answers

Answer: n=3

Step-by-step explanation:

Understand that you need to set up a proportion before you can try to solve the question through guessing. In this case, YZ would be proportional to XY as EF is proportional to DE. You would write this as: EF/DE=YZ/XY.

Now you want to write an equation. In order to do this remember to multiply by your proportion. Here’s my equation:

5/4(4n+4)=7n-1. Now distribute:

5n+5=7n-1. Now simplify:

6=2n. Now simplify again:

n=3

Hope this helps you with your big ideas math hw!

The value of is n=3

Important information:DEF-XYZ whenDE = 4, EF = 5, XY = 4(n + 1). YZ = 7n - 1.

The calculation is as follows:

5/4(4n+4)=7n-1.

Now distribute:

5n+5=7n-1.

Now simplify:

6=2n.

n=3

Find out more information about the Number here : https://brainly.com/question/17429689?referrer=searchResults


ten more than two times a number is fourteen more than negative four times a number. Find the number

Answers

Answer:

4/6 or as a decimal 0.666

Step-by-step explanation:

Convert to numbers and letters. 10 + 2n = -4n + 14

Move the like terms to their side: 6n = 4

Divide by 6: n = 4/6 or as a decimal 0.6666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666

Pretty simple 1/3(9−6m)+1/4(12m−8)= what?

Answers

Answer: =m+1

Step-by-step explanation:

hope this helped

Answer:

= m + 1

Step-by-step explanation:

3 - 2m + 3m - 2

m + 1

What is the x-intercept of the graph that is shown below?
(-2,0)
(-1,2)
(0,4)
(4,0)

Answers

The X intercept would be (-2, 0)
(-2,0)
X,Y
X will always be the number of the horizontal line and Y always on vertical

I have 14 Baseballs in 23 tennis balls and some boxes of baseballs with 12 baseball and I have the equal amount of boxes of tennis balls and 16 ball write an expression to represent the total number of balls

Answers

Answer:

The answer is below

Step-by-step explanation:

I have 14 Baseballs in 23 tennis balls. I bought some boxes of baseballs with 12 baseball to a box and equal amount of boxes of tennis balls with 16 balls to a box. write an expression to represent the total number of balls

Solution:

Let n represent the number of boxes of each type.

Given, the number of boxes of tennis = number of boxes of baseball, hence:

n = number of boxes of tennis = number of boxes of baseball.

Already I have 14 baseball and I bought boxes of baseballs with 12 baseball to a box, therefore:

Number of baseballs = 14 + 12n

I have 23 tennis ball and I bought boxes of tennis balls with 16 baseball to a box, therefore:

Number of tennis balls = 23 + 16n

Total number of balls = number of baseballs + number of tennis balls

Total number of balls = (14 + 12n) + (23 + 16n) = 14 + 23 + 12n + 16n = 37 + 28n

Total number of balls = 37 + 28n

A study of population of 1200 frogs revealed that 12 out of every 180 frogs in the population have spots on there back based on the results if this study how many frogs do not have spots on there back

Answers

Answer:

1176 doesn’t have spots on their back

Step-by-step explanation:

Divide

1200/180

=you’ll get about 6.66 or just round to 7

12*7=84

1200-84

1176

1176 doesn’t have spots

The table below shows the scores on a math test. David 75 Aaron 75 Ashley 60 Gina 75 Andrew 75 Kei 95 Monica 100 Anna 60 Lucas 75 Jennifer 65 The number of standard deviations between a score and the mean score is indicated by a z-score. What was Ashley's z-score on the math test?
a. 1.1
c. -1.1
b. 60
d. -15.5​

Answers

Answer: c

Step-by-step explanation: good luck everyone

Ashley's z-score for the given table is -1.2.

What is z-score?

''A z-score describes the position of a raw score in terms of its distance from the mean, when measured in standard deviation units. The z-score is positive if the value lies above the mean, and negative if it lies below the mean.''

From the given table, we can calculate the mean, median, mode and standard deviation.

Therefore, mean = (75 + 60 + 75 + 100 + 75 + 75 + 75 + 95 + 60 + 65) ÷ 10

= 75.5

Median = middle term when scores are arranged in ascending order

= middle term of {60, 60, 65, 75, 75, 75, 75, 75, 95, 100}

= 75

Mode = number that occurs highest in {60, 60, 65, 75, 75, 75, 75, 75, 95, 100} = 75.

Standard deviation = [tex][\sqrt{(x_1-x)^{2}+(x_2-x)^{2}+........+(x_n-x)^{2}]/n[/tex]

=  [tex][\sqrt{(75-75.5)^{2}+(60-75.5)^{2}+........+(65-75.5)^{2}]/10[/tex]

= [tex]\sqrt{157.25}[/tex]

=12.54

Therefore, Ashley's Z-score = (Ashley's score - Mean)/ Standard Deviation

= (60 - 75.5)/12.54 = -1.2

Learn more about z-score here: https://brainly.com/question/17756962

#SPJ2

What is the y-intercept of the equation?

Answers

Answer:

5

Step-by-step explanation:

Y=-3x+5

the y-intercept would be 5

i dont get this pls help

Answers

Answer:

x=2.52

Step-by-step explanation:

30.16=17.56+5x

Subtract 17.56 from both sides

12.6=5x

17.56 cancels on the right side

Divide 5 to both sides

5 cancels on right side  

12.6/5=2.52

x=2.52

It is given that set W = { x, y, z).
What is the subset of set W?

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

Given the set W = {x, y, z}

If there are n elements in a set, then are 2ⁿ subsets.

As there are 3 elements in a set, then are 2³ or 8 subsets.

so

W = {x, y, z} has 8 subsets.

They are:

∅, {x}, {y}, {x}, {x, y}, {x, z}, {y, z}, and {x, y, z}

Please note that any subset of the set W = {x, y, z} contains all the elements which are also the elements of the set W = {x, y, z}

HELP ASAP!!
geometry

Answers

Answer:

Step-by-step explanation:

Y+6=3y-30

Subtract y from the left

6=2y-30

Add 30 to both sides

36=2y

Divide by 2

18=y

2x+29=4x-47

Subtract 2x

29=2x-47

Add 47

76=2x

Divide by 2

38=x

PLZ HELP! NO FAKE ANSWER PLEASE!!!!!! PLEASE AND THANK YOU MARRY CHRISTMAS!

Answers

Answer:

1. m=1/2

2. x=4/7

3. t=4

4. y=5

Step-by-step explanation:

1. 5m+4=7m+6

5m-7m=6-5

2m=1

m=1/2

2. -5x+3=2x-1

-5x-2x=-1-3

-7x=-4

x= -4/-7= 4/7

3. 5t-3=3t+5

5t-3t=5+3

2t=8

t=8/2= 4

4. 53y-55= 42y

53y-42y=55

11y=55

y=55/11=5

hope it helps!

Answer:

1. 5m+4=7m+6

Step 1: Subtract 7m from both sides.

5m+4−7m=7m+6−7m

−2m+4=6

Step 2: Subtract 4 from both sides.

−2m+4−4=6−4

−2m=2

Step 3: Divide both sides by -2.

[tex]\frac{-2m}{-2} = \frac{-2}{2}[/tex]

m=−1

_______________________________

2.  −5x+3=2x−1

Subtract 2x from both sides.

−5x+3−2x=−1

Combine −5x and −2x to get −7x.

−7x+3=−1

Subtract 3 from both sides.

−7x=−1−3

Subtract 3 from −1 to get −4.

−7x=−4

Divide both sides by −7.

x= [tex]\frac{-4}{-7}[/tex]

[tex]Faction \frac{-4}{-7}[/tex] can be simplified to [tex]\frac{4}{7}[/tex] by removing the negative sign from both the numerator and the denominator.

x= [tex]\frac{4}{7}[/tex]

_____________________________

3. 5t−3=3t+5

Subtract 3t from both sides.

5t−3−3t=5

Combine 5t and −3t to get 2t.

2t−3=5

Add 3 to both sides.

2t=5+3

Add 5 and 3 to get 8.

2t=8

Divide both sides by 2.

t= [tex]\frac{8}{2}[/tex]

Divide 8 by 2 to get 4.

t= 4

___________________________

4. 3y−55=42y

Subtract 42y from both sides.

53y−55−42y=0

Combine 53y and −42y to get 11y.

11y−55=0

Add 55 to both sides. Anything plus zero gives itself.

11y=55

Divide both sides by 11

y= [tex]\frac{55}{11}[/tex]

Divide 55 by 11 to get 5.

y=5

guys i need help on this whats 5x^3-10x-4x^2+8=0

Answers

Answer:

the answer is your dog is getting more action than you

HELP PLS ARE THESE ANSWERS CORECT?!!!!!!!!!!! ILL GIVE BRANLIEST!

Answers

Answer:

a

Step-by-step explanation:

Hope this helps

Answer:

It’s the first one

Step-by-step explanation:

George Washington was reluctant to lead the Continental Army because he was worried about leaving his wife, Martha, alone if he were to be captured or killed during the war.

Jenny is an architect and is working to find the side length of a room in a house plan she is
reviewing. She knows that she can find the side length from the area using the formula 8 =
A. She could also find the side length using the perimeter with the formula 9 = she wants to see
what the design would look like with an equal perimeter and area. She graphs the formulas and
hnds the intersection point. What does this intersection point tell her?
O Cannot be determined
The measure of the side length
The side length that creates an equal perimeter and area,
The total perimeter and area of the room

Answers

Answer: At first I though O but you would be able to use A because you are able to make that 9 = to that 8

Step-by-step explanation:

The intersection point tells her the side length that creates an equal perimeter and area.

What is perimeter?

A closed shape's perimeter is the sum of the lengths of its outside boundaries. The lengths of all the sides are added to determine the measurement.

Jenny is an architect and is working to find the side length of a room in a house plan she is reviewing.

She knows that she can find the side length from the area using the formula 8 = A.

She graphs the formulas and finds the intersection point.

The intersection point of the two equations represents the solution where the side length satisfies both the equations, giving an equal perimeter and area. Therefore, the intersection point tells her the side length that creates an equal perimeter and area.

To learn more about the perimeter of a shape:

https://brainly.com/question/28161250

#SPJ2

The volume of 100 drops of a liquid is 0.1 fluid ounces what is the volume of 10,000 drops

Answers

Answer:

0.001 fluid oz.

Step-by-step explanation:

100 : 0.1 = 10,000 = 0.001

Alaska is -3 degrees, lowa is 5 degrees, Idaho is - 7 degrees, New York is 9 degrees, and
Maine is -1. Which state has the coldest temperature?

Answers

Answer:

Idaho

Step-by-step explanation:

Solve the inequality 6.2n < 2n + 8.4​

Answers

Answer:

n<2

Step-by-step explanation:

6.2n<2n+8.4

Move variable to the left hand side and change its sign

6.2n - 2n < 8.4

Combine like terms

4.2n < 8.4

divide both side by 4.2

n < 2

PLS HELP ASAP PLSSS IT DETECTS IF ITS RIGHT OR WRONG HELPPP

Answers

Answer:

B - 500 + 10x = 700

Step-by-step explanation:

It’s not C because there’s nothing to subtract, he’s just gaining. It’s not A because he gains 10 every month, so the x would have to be on the 10, which means it’s B.

Answer:

B-500+10x=700

Step-by-step explanation:

Percy's Pizzeria made 4 pizzas with pepperoni and 59 pizzas without pepperoni. What is the ratio of the number of pizzas with pepperoni to the number of pizzas without pepperoni? I had got 15/59 i wanna know if it is correct.

Answers

Answer:

4 : 59

Step-by-step explanation:

Close. But good try

So what is "ratio?"

Well seems like you got 15/59 i think you meant 15:59 right? ratio has a : in it.

But, you see there is only 4 pizzas with pepperoni in it so actually it should be

4 : 59

Good attempt anyways Trying is always better than nothing.

I ANSWERED A AND B. I ONLY NEED THE ANSWER TO C. PLEASE HELP :(

Answers

Answer:

1.5

Step-by-step explanation:

Please correct me if I'm wrong. :)

1.2


1.2x5= 6
12-6=6
Therefore it would be 1.2

I need help with 13 and 14

Answers

Answer:

13) x = 62

14) x = 2.5

    y = 5.88888889

Step-by-step explanation:

x = 62 because x is the alternate interior angle of 62.

37x - 19 = 29x + 1 (subtract 29x on both sides)

8x - 19 = 1 (add 19 on both sides)

8x = 20 (divide by 8)

x = 2.5

Plug 2.5 into 29x + 1 to find 9y + 25

29(2.5) + 1 = 73.5

9y + 25 = 73.5 (subtract 25 on both sides)

9y = 48.5 (divide by 9 on both sides)

y = 5.388888889

It all checks out!

HOPE THIS HELPS!

If 15% of 200 apples are bad, haw many apples are bad? (Please include explanation)

Answers

Answer:

30 bad apples.

Step-by-step explanation:

1% is equivalent to two bad apples because 200 is the 100%.

According to this statement, multiply 2 x 15.

30 bad apples

Other Questions
Which of the following best describes the gods treated one another in greek myths? A: the gods acted thoughtfully and rationally.B: the gods consistently treated each other with kindness.C: the gods acted emotionally and often vindictively.D: the gods treated each other morally and responsibly. URGENT DUE TODAY I WILL GIVE BRAINLIEST I PROMISEThe medians of a right triangle that are drawn from the vertices of the acute angles have lengths of 2 13 and 73. What is the length of the hypotenuse? What is the difference between regular and irregular verbs when conjugated to the present tense in Spanish? Idk I wasnt in class today pls help me Investigator Hughes interviews a suspect in a shooting. The suspect admits to firing the gun but says that they were firing into the air and must have hit the victim by mistake. What evidence would contradict this account? Rifling marks on the bullet A circle of lead concentrated around the bullet hole No signs of gunpowder residue Gunpowder residue on the suspect's hand HELP PLEASE what's the slope of the line? help!!!!!! asap please! DO IT ASAP ONLY 3 PROBLEMS Please find x thanks!!! (Theres a link) help please fill in the blank The mass of an object is 45 kilograms. Its weight on Earth is(blank)newtons, and its weight on the Moon is (blank) newtons Gravitational force is 9.8 m/s2 on Earth and 1.6 m/s2 on the Moon. What is the slop of a line that passes through (2,10) and (1,6) Choose a system and make a case for why you wouldor would not choose to solve that system by substitution 14. Stressed and unstressed syllables creates ? 1. rhyme in poetry2.rhythm in poetry 3.internal rhythm in poetry 4.end rhyme - Which of the following statements best explains how the 17th Amendment increased democraticparticipation in the United States?(A) It extended the right to vote to black men(B) It changed the election process for US senators(C) It extended the right to vote to women(D) It changed the minimum voting age from 21 to 18 Riddle Time! Please help! Choosing Correct Punctuation Complete each sentence with the correct punctuation mark Nadia got home from school and noticed that her desk drawer was open She called out, "Who was in my room Her brother came to the door and said, "I was Then Nadia shouted, "I can't believe you went through my things there are 36 carpenters in a crew. On a certain, 29 were present. What percent showed up for work? (round to the nearest tenth) What are the missing angles? A first grader reads 72 words in 4 minutes. Pls explain how you got the answer:( simplify 4 to the square root of 3 5 to the square root of 3 does an object in motion stay in motion