Twice jack’s age plus 5 is 21.write and solve an equation.how old is jack

Answers

Answer 1

Answer:

  8

Step-by-step explanation:

If j represents Jack's age, we have ...

  2j +5 = 21

  2j = 16 . . . . . . subtract 5

  j = 8 . . . . . . . . divide by 2

Jack is 8 years old.


Related Questions

8. Beth doesn’t begin to receive commission until she reaches $50,000 in sales. Once she does, her commission rate is 12%. If she sells cars totaling $115,000, how much money does she make in commission?
A.$13,800
B.$6,000
C.$7,800
D.$8,400
PLEASE HELP ME

Answers

Answer:

The Answer Is A. $13,800

Step-by-step explanation:

Find the difference in lowest terms. 15/19 - 7/19

Answers

Answer: 8/19

Step-by-step explanation:

15/19 - 7/19 = 8/19

8/19 cannot be simplified further

Find the cost of carpeting a 9 foot by 12 foot room at $30 per square yard.

Answers

Answer:

Step-by-step explanation:

Multiply the total number of square feet by the cost per square foot of the carpet. If padding isn't included, multiply the cost of the padding by the total number of square feet, and then add the result to the total cost per square foot of the carpet.

108 Sq Ft 12 Sq YdsEstimated Price

$3,240.00 Carpet Cost

$0.00 Padding Cost

$3,240.00 Carpet & Padding Cost

hope that help

Suppose that g(x) = f(x) + 5. Which statement best compares the graph of
g(x) with the graph of f(x)?

Answers

Answer:

See below

Step-by-step explanation:

Adding 5 to the function means there's a vertical shift of 5. For example, if f(x)=x^2, then g(x)=f(x)+5 makes g(x) 5 units above f(x)

What is the slope of the line that passes through the points (-4, 3) and (6, -5).

Answers

Answer:

-4/5

Step-by-step explanation:

m=[tex]\frac{y2-y1}{x2-x1}[/tex]

m=[tex]\frac{-5-3}{6-(-4)}[/tex]

m=-8/10

m=-4/5

pls help mwah I also give brainlest <3

Answers

Y= 1.5 because when u look at the graph u can see

PLEASE HELP I WILL GIVE BRAINLIEST IF YOU ARE CORRECT
Which of the following is a function equivalent to
f(x)=3(1.2)4x ?

Group of answer choices

f(x)=3(2.01)x


f(x)=3(2.07)x


f(x)=3(4.8)x

f(x)=12(1.2)x

Answers

Answer:

f(x)=12(1.2)x

Step-by-step explanation:

help! ignore pencil work! any comment with a link or answer that dosnt relate or i found out later that thats the wrong answer will be deleted! PLEASE SHOW WORK

Answers

Answer: x = 13, Angle ABE = 51°

Step-by-step explanation:

Since angle ABC is 90° and angle EBC is 39°, subtract them.

90° - 39° = 51°

This means that angle ABE equals 51°. Plug in 51° as the y in the equation y = 3(x+4).

51 = 3 (x + 4)

Multiply 3 by x and 4.

51 = 3x + 12

Subtract both sides by 12.

39 = 3x

Divide both sides by 3.

x = 13

my Christmas present to you​

Answers

thank you very much for this! :)

What is the greatest common factor of 14, 30, and 40?

Answers

Answer:

1x14 1x30 1x40

Step-by-step explanation:

what is 3/4 doubled as a fraction

Answers

Answer:

1 2/4.....1 1/2...........6/4

Step-by-step explanation:

add two 3/4.

1 2/4.

It is either 1 1/2, or 6/8. Not enough context is given to decide which, you should be able to figure it out though.

The function a(1) =1/2I^2 describes the area of an isosceles right triangle with leg I. Make a table of values for I=1,2,3 and 4. Enter your outputs as decimals

Answers

Functions can be represented using equations, graphs and tables.

The function is given as:

[tex]a(l) = \frac 12 l^2[/tex]

When l = 1, we have:

[tex]a(1) = \frac 12 \times 1^2[/tex]

[tex]a(1) = 0.5[/tex]

When l = 2, we have:

[tex]a(2) = \frac 12 \times 2^2[/tex]

[tex]a(2) = 2.0[/tex]

When l = 3, we have:

[tex]a(3) = \frac 12 \times 3^2[/tex]

[tex]a(3) = 4.5[/tex]

When l = 4, we have:

[tex]a(4) = \frac 12 \times 4^2[/tex]

[tex]a(4) = 8.0[/tex]

Represent the above results as a table, we have:

l          a(l)

1          0.5

2         2.0

3          4.5

4          8.0

Read more about tables and functions at:

https://brainly.com/question/13136492

HELP !!! HI PLEASE HELP PLEASE I NEED MATH HELP LOL

Answers

Answer:

(-1, 0.5)

Step-by-step explanation:

please mark brainliest

Tell whether the ordered pair is a solution to the equation. Please show how you solved it.


(4, 4); y = -x + 8

Answers

Answer:

The ordered pair is a solution to the equation

Step-by-step explanation:

Plug the ordered pair into the equation as (x,y):

y = -x + 8

4 = -4 + 8

4 = 4

Since both sides are equal to each other, then the ordered pair is a solution to the equation.

Yes, it is a solution to the equation.

Plug in the values 4, for y, and 4, for x. Since there is a negative sign next to x, it turns 4 into -4. So, the equation will look like this: 4 = -4 + 8, add 8 to -4, and you get 4. 4 = 4. 4 = 4 is a true statement, so the pair IS a solution to the equation. Hope this helps!

X - 98 + X divided by 2 when x is 300?
will give brainliest

Answers

Answer:

441

Step-by-step explanation:

Where you see X, substitute with 300

300-98 + 300÷2

291 + 150

= 441

Answer:

352

Step-by-step explanation:

important info:

x = 300

Solution/Explanation:

300-98+300 ÷ 2=

202+150=

352

Hence, the Answer is 352.


Jerry is buying hot dogs and hamburgers for his barbeque. Hot dogs cost $7 per pack, while hamburgers cost $12 per pack with taxes included. Jerry can spend a maximum of $70 on the food.

Answers

Answer: see below

Step-by-step explanation:you would do $5y + $6y - $50 or $11y - $50

If  Hot dogs cost $5 per pack and hamburgers cost $6 per pack you would multiply the amount of packs by the amount of money it costs then you would subtract by the amount he can spend on food therefore the answer being

$5y + $6y - $50 or $11y - $50

If the sum of difference of 13 and 4 divided 64 and 8 is subtracted from the result. Find that number. Mathematical equation plz.​

Answers

Answer:

13+4=17,17/64=3-8=-5

Step-by-step explanation:

this is the solution

Step-by-step explanation:

Let x be the number subtracted from 13 such that the difference is 13-x

divide that resulting difference by 11, then it becomes (13 - x) / 11

Multiply the quotient by 8 then the expression becomes ((13-x)/11)^ * 8

the product comes to 8 then ((13-x)/ 11)^ * 8=8 solve the equation divide

both sides by 8, then (13 - x) / 11 = 1 cross multiply 13 - x = 11 add -13 to both sides - 13 + 13 - x = 11 - 13, - x = - 2 . x = 2 Therefore the number is 2

0.9 ÷ 13 = ____
0.0707÷ 70=____
32.27 ÷ 55=_____
18.2 ÷ 51=_____

Answers

.0692307
.00101
.58672727
.35686275

What is an equation of the line that passes through the points (-6, 5) and (6, -7)?


Plz answer

Answers

We can put this into point-slope form, and then put this into slope-intercept form. Firstly, we need to find the slope. The slope is -12/12. This means it is -1. I found this by using y2-y1/x2-x1.

Next, we use point-slope form. Point-slope form is y-y1=m(x-x2). I will use the coordinate (-6, 5). y-5=-1(x-(-6) is y-5=-x-6. Once we solve for y, we get y=-x-1.

The answer is y=-x-1

Determine which of the lines if any are parallel or perpendicular

Answers

Answer:

Parallel: 6, 1

Perpendicular6,. 1

PLZ HELP
fill in the blanks ​

Answers

Answer:

Step-by-step explanation:

First, to solve the problem, you must distribute the 5 to the (2 + 9). Which ends you up with 10 + 45. Which would give you 55, but we aren't solving it.

So instead, when you are distributing, you are taking the number next to the parentheses (5) and multiplying it into the parentheses like this:

(5 x 2) + (5 + 9).

That is your answer. Hope this helps.

5 x (2 + 9) = (5 x 2) + (5 x 9)
Ok done. Thank to me :>

The table shows the amount of time a delivery truck has been driving and the distance traveled. The total distance traveled is a direct variation of the number of hours. Use the model below to find the slope.

Answers

The slope of the line represents that the a distance of 55 miles is covered each hour

A linear equation is in the form:

y = mx + b

where y, x are variables, m is the slope of the line and b is the y intercept.

Let y represent the distance in miles covered in x hours.

Using points (2, 110) and (7, 385) from the table:

[tex]slope(m)=\frac{y_2-y_1}{x_2-x_1}=\frac{385-110}{7-2}\\\\m=55[/tex]

Therefore the slope of the line represents that the a distance of 55 miles is covered each hour

Find out more on linear equation at: https://brainly.com/question/14323743

Brainliest for free




JK

Solve the inequality d + 6 < 13 for d.

Answers

Answer:

[tex]\huge\boxed{\sf d < 7}[/tex]

Step-by-step explanation:

Given inequality is:

d + 6 < 13

Subtract 6 to both sides

d < 13 - 6

d < 7

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

We can describe 3x - 2 as an expression.
How can we describe the parts of the expression that the arrows point to?
3x- 2

Answers

Given:

3x - 2

To find:

Describe the parts of the expression

Solution:

3x - 2Let us consider, f (x) = 3x - 2

The standard equation of the straight line is given by, y = mx + c

comparing the given equation with straight line equation, we get,

f (x) = y

m = 3

c = -2

m is the gradient of line

c is the y intercept (the graph crosses the y - axis)

Match the example on the left with the corresponding property on the right.
3(x - 2) = 3x - 6
Commutative
3+ (4 + 5) = (3 + 4) + 5
Associative
- 4x - 8 = – 2(2x + 4)
Distributive
4.5.6=6.4.5
(2.3). 7 = 2 · (37)

Answers

3(x - 2) = 3x - 6 ---> Distributive

3+ (4 + 5) = (3 + 4) + 5 ---> Associative

- 4x - 8 = – 2(2x + 4) ---> Distributive

4.5.6=6.4.5 ---> Commutative

(2.3). 7 = 2 · (37) ---> Associative

Abby rode her bike for 1 and 3/4 hours on Saturday and 1 5/8 hours on Sunday what is the total amount of time she rode her bike on these two days ​

Answers

Answer:

3 3/8 hours

Step-by-step explanation:

Add 1 3/4 and 1 5/8 = 27/8 = 3 3/8

You are going to a private apple orchard to pick apples. There is a one-time entry fee
that everyone pays, and you also pay a certain amount per pound of apples you pick. It
costs $42 to buy 5 pounds of apples, and it costs $54 to buy 7 pounds of apples.
Based on this information, what is the one-time entry fee?

Answers

The one-time entry fee is $12.

In order to determine the one-time entry fee, two equations have to be formed from the information in the question:

x + 5y = 42 equation 1

x + 7y = 54  equation 2

Where:

x = one-time entry fee

y = cost to pick an apple per pound

In order to determine the one-time entry fee, take the following steps:

Multiply equation 1 by 7 and equation 2 by 5.

7x + 35y = 294 equation 3

5x + 35y = 270 equation 4

Subtract equation 4 from equation 3

2x =24

Divide both sides of the equation by 2

x = $12

To learn more, please check: brainly.com/question/23589883

The area of a square is 161 m2. Which of the following best represents the perimeter of the square?

Answers

Answer:

322m for perimeter

Step-by-step explanation:

161/2 = 80.5

80.5*4 = 322

i think

5) find the value of x and y

Answers

Answer:

x = 45°, y= 5°

Step-by-step explanation:

x = 9y

90+2x = 180

2x = 90

x = 45

so x = 45

9y = 45

y = 5

100 points!!!!!!!!!!!!

Answers

Answer:

a)

Step-by-step explanation:

Answer: pretty sure it's d but I could be wrong

Step-by-stepStep-by-step explanation:

Other Questions
2. You have 7 folders and you want to put the same number of pages in each folder. a. If you have a total of p pages, how many pages will be in each folder? b. Evaluate your expression to calculate the number of pages in each folder if you have 147 pages or245 pages. 68.1 x 0.8help me please or im gonna fail :( Imagine that you were a member of Congress listening to the Presidents Pearl Harbor Address, faced with the decision of whether or not to declare war on Japan. What would do if you were there? Why that decision? Give support from the speech to support your thoughts. An object is projected with speed of 4ms at an angle of 60 to horizontal. Calculate the time of flight of the object. (g=10ms2) Find the value of the unknown value in the following equation14x + 9 =79 PLZ HELP Which ordered pair is a solution to the line whose equation is 2y=-3x-2A.(2, -3) C. (2, -4) B. (-3, 2) D. (-4, 2) What is meant by culture of peace? Why is it necessary SEP Construct Explainations: Explain how a substance's flammability can indicate a chemical change. DIRECTIONS: Take a close look at the words give and GivingIn one paragraph (5 or more sentences) explain what these words mean to you. Please include the following information Are you a giver?What are the things you like to give?What holiday do you see people GIVING more?If you could bless one person with a gift, who would it be and what would you give A personification sentence using a red apple he people under the rule of the Gupta excelled in all of the following EXCEPT:a.literaturec.artb.astronomyd.mathematics What type of phrase is in the sentence?A good habit to have is to go for a walk in the evening.O Infinitive phraseO Noun phrasePrepositional phraseO No answer text provided. Find the unit price for a 9 oz bottle of ketchup for 88cents. round answers to the nearest tenth of a cent. ________ cents per ounce completa la siguiente tabla con las formas apropiadas del imperfecto de los verbos. How do gravity work? Question 9 of 10Overall, what is U.S. economic foreign policy designed to promote?A. Fair wages for workersB. Free tradeC. U.S. cultural dominanceD. Protection of U.S. companies solve pls brainliest Problema: Juan quiere repartir sus calidez entre sus hermanos pequeos. Dice que dar lamitad en Anna y tres sextas partes en Ignacio. Anna est enfadada porque dice queIgnacio tendr ms, es cierto? a 25 kg crate is pushed horizontally with a force of 70N. if the coefficient of friction is .20, calculate the acceleration of the crate. Based on the CBS News Report that you watched in Lesson 3, how is the United States involved in the incidents surrounding the hazardous conditions in the Bangladesh sweatshops?