Mathematics Middle School

Jack's father is 3 times older than jack. 5 years ago the sum of their ages was 34. How old is jack's father now?
PLS HELP ASAP!!!!

Answers

Answer 1

Answer:

11 years old

Step-by-step explanation:

Jack's father is 3 times older than jack. ATQ, 5 years ago the sum of their ages was 34. So, the present age of Jack is 11 years.

(Hope this helps!! Btw, I am the first to answer.)

Answer 2

Answer:

33

Step-by-step explanation:

Jack's father is 3x

Jack is X

(x-5)+ (3x-5)= 34

4x-10=34

4x=44

x=11

Jack's father is 3X

Jack's father is now 33

Related Questions

8 (3x + 6) + 168
Can you help me?

Answers

Answer: 24x + 216

Step-by-step explanation:

8(3x+6)+168

Distribute:

(8)(3x)+(8)(6)+168

24x+48+168

Combine terms:

(24x)+(48+168)

=24x+216

Answer:

24x + 216

Step-by-step explanation:

8*3x = 24x

8*6 = 48

24x + 48 + 168

24x + 216

A rectangular pyramid was sliced perpendicular to its base and through its vertex. What is the shape of the cross section shown in the figure?

A rectangular pyramid. The cross section is a triangle.
a triangle that has the same dimensions as one of the sides of the pyramid
a triangle that does not have the same dimensions as one of the sides of the pyramid
a parallelogram that is not a rectangle
a rectangle

Answers

Answer:a triangle

Step-by-step explanation:trust me and if you get it right on the test give me a like

A triangle. I hope I’m right ;-;

one of the walls in megs bedroom is a square, 9 feet wide by 9ft tall. that wall has a square window that is 3ft wide and 3 ft tall. What is the area of the surface of the wall? explain how you found your anser.

Answers

First, we have to find the area of the wall, then the area of the window, then subtract them.

Area of wall = 9 × 9 = 81 sq.unit

Area of window = 3 × 3 = 9 sq.unit

So, the area of the wall ( excluding window ), = 81 - 9 = 72 sq. unit

Please help me I am stuck (questions are in the picture, and the marked-off section does not have to be done).

Answers

A. 250+50(m)
M representing months
B. 250+50(2)=350
250+50(4)=450
250+50(6)=550
250+50(8)=650
250+50(10)=750
C. You’ll start at (0,250)
The go to (2, 350), (4,450),etc
D. The x axis is months and the y axis is the amount of money saved.

(11 points) someone help with these two problems asap (inequalities)

Answers

It is 4. 2x + 3 < -9= -6
the answer to 5 is p > -5 and the answer to 6 is x >= 2

please find circumfrence and area and list the squares (cm, cm2, cm3) thanks

Answers

The answer would be 18.85

18.84 3.14(6) 3 is radius 6 is diamiter do c=d pie then you get 18.84

What is the solution for this inequality?

-4g - 10 ≤ 2

OPTIONS:

1. g ≤ - 3

2. g ≥ -3

3. g ≤ 2

4. g ≥ 2

Answers

Answer:

2. g ≥ − 3

Step-by-step explanation:

Calculator :D

Answer:

-4g<=12

g>=-3

so 2 is the answer

Step-by-step explanation:

Pleaseee helpppp Please!!!

Answers

All you have to do is convert the boxed ones into positive because anything between |x| is always positive! It can’t be negative. That’s the rule.

Answer:

30:18

31:0

32:25

33:2+13=15

34:20-17=3

35:16-5=11

Step-by-step explanation:

GIVING BRAINLIEST!!!!

Answers

Answer:

B

Step-by-step explanation:

A roll of ribbon was 12 meters long. Diego cut 9 pieces of ribbon that were 0.4 meters each to tie some presents. He then used the remaining ribbon to make some wreaths. Each wreath required 0.6 meter.

How many meters of ribbon were available for making wreaths?

How many wreaths could Diego make with the available ribbon?

Answers

Answer:

8.4 meters of ribbon left and 14 wreaths made

Step-by-step explanation:

9 * 0.4 = 3.6 meters used for presents

12 - 3.6 = 8.4 meters left for wreaths

8.4 / 0.6 = 14 wreaths

Answer:

14 wreaths

Step-by-step explanation:

If Shannon had to pay $0.50 for each ticket, what is the rate for bumper cars in seconds per dollar?

Answers

Answer:

i dont get it

Step-by-step explanation:

4x + 1/3y^2 What is the value of the expression above when x = 2 and y = 3? You must show all work and calculations to receive full credit.

Answers

4x+1/3y^2
4(2)+1/3(3)^2
8+1/3(9)
8+3
= 11

Find f(–4) if f(x) = –11x + 7

Answers

x= 3/11
Step-by-step explanation:
Since you replace f(x) with 4,
4=-11x+7
-3=-11x
-3/-11=x

Answer:

f(-4) = 51

Step-by-step explanation:

-11(-4) + 7

44 +7 =

51

Plot the set of data in three different ways: a dot plot, a histogram, and a box plot: 2, 9, 5, 12, 34, 9, 5, 5, 3, 12, 14, 3.

Answers

Answer:

huh

Step-by-step explanation:

In the scale drawing, what will the length of the east, south, west, and north side of the backyard be?
(The width on the scale drawing will be 0.8 inches.)

Answers

Answer:

The length of the south side of the backyard is 1inch to 10ft

The length of the west side of the backyard is 20

The length of the north side of the backyard is 50

Part F is. stay the same

Part G is 278, 32

Step-by-step explanation:

Can u pls mark me brainliest?

Order of Operation.
Jackie Opened a pizzeria. She was charging $12 dollars for a Large Pizza, $8 dollars for medium Pizza, and $6 dollars for a small Pizza. if you order 3 large, 2 mediums, and one small pizza what equation would tell you how much You spend?

Answers

Answer:

55

Step-by-step explanation:

12x3 8x2 1x3 once youve done that it should be

36+16+3= 55 (i think so)

Answer:

(3×12)+(2×8)+6

   36+16+6

      52+6

         58$

In your own words, explain independent and dependent variables

Answers

independent variables don’t rely on another variable to work. dependent variables depend on another variable.
an independent variable is a variable(often used as x) whose variation does not depend on another variable. a dependent variable is the opposite, its’ variation depends on another variable.

please help me with this

Answers

Answer:

improper fraction:10/3

mixed number: 3 1/3

Answer:

3 1/3 is the mixed number and 10/3 is the improper fraction

Step-by-step explanation:

I really hope this helps :)

Help Now Plz

Don't need help

Answers

Answer:

? I think there is an option to take down a question if you don't need help.

ok i hope you’re question is all solved i hope you have a great day and remember if you have a question i’m here :)

Describe the graph of the equation x = 7. Is the equation a function?



A. vertical line; no



B. horizontal line; no



C. horizontal line; yes

Answers

Answer:

no it is not, A

Step-by-step explanation:

functions are things which u can draw vertical lines through and it never intersects(one x value leads to exactly one y value) at more than one point so A because x=7 is infinite y values for one x value.

I’d be answer A. Because it is a vertical line

An astronomical unit (AU) is the average distance between Earth and the sun. One AU is equal to approximately 150,000,000 km. Astronomers also use light years to measure distance. A light year is
approximately 9.5 x 1012 km

Answers

Answer:AU is right

Step-by-step explanation:

pls put explanation to so i undersand hat to do

Answers

Answer:

So Im basicaly just replying to get points sorry

Look i sure someone will answer it soon good luck buddy I have faith in you

Step-by-step explanation:

6 x − 1 8 ≤ 2 7 Pls solve

Answers

Answer:

Step-by-step explanation:

6x - 18 < 27

Bringing like terms on one side

6x <_ 27 + 18

6x <_ 45

x <_ 45/6 = 7.5 or 15/2

A store pays $70 for a bicycle from a manufacturer. The store's markup rate is 65%.
Find the markup.

Answers

$115.50. You do 70(1.65) to find the markup

Answer:

$45.5 or the price is  $115.50

Step-by-step explanation:

Write 65% as

65/100

Since, finding the fraction of a number is same as multiplying the fraction with the number, we have

65/100 of 70 = ? = 65/100 × 70 = ?

Therefore, the answer is 45.5

Please help QwQ
I'll do anything-

Answers

Answer:

in scientific notation....14×10^12miles

What is the probability of rolling an even number on a number cube and flipping a tails on a coin?

Answers

The probability for rolling an even number on a number cube would be 3/6 or 50%. There are 6 sides to a cube and 1,3,5 (3 sides) are odd, 2,4,6 (3 sides) are even.

The probability of flipping a tails on a coin is 1/2 or 50%. There are two sides on a coin and 1 side is tails.

this is due in 8 minutes help pls :/

Answers

a*4/9b*5

(In case you don’t understand what that means) A to the power of 4 divided by 9 multiplied by b to the power of 5. This is the most you can simplify it to
You can flip the second part of the question and then simplify 35 and 45 and 77 and 11
When you use exponents; If the base is the same then you can add the exponents to get the answer

Simplify the following expression using the distributive property
6(z-7)
Explain your answer

Answers

take the 6 and just multiply both numbers by it so 6z-42

Answer:

6z-42

Step-by-step explanation:

6(z-7)

When we simplify using the distributive property, we multiply every term inside the parentheses by the number on the outside.

= 6z-6(7)

= 6z-42

I hope this helps!

Please help!
A rectangular-shaped box has the following dimensions: 12 yards, 8 yards, and 18 yard. What is the surface area of the box?

Answers

Answer:

912 is the surface area

Surface area of the cuboid is the sum of the area of all the sides. The surface area of the box is 912 yards².

What is the surface area of the cuboid?

The surface area of the cuboid is the sum of the area of all 6 sides of the cuboid.

The surface area of the cuboid

= 2[(Length x breadth)+(Length x height)+(height x breadth)]

As it is given to us that the box is rectangular, therefore, the actual shape of the box is cuboid. And for a cuboid, the surface area is given as,

The surface area of the cuboid

= 2[(Length x breadth)+(Length x height)+(height x breadth)]

Also, the length, breadth, and height of the cuboid is 12 yards, 8 yards, and 18 yards, therefore,

The surface area of the box = 2[(12 x 8)+(12 x 18)+(8 x 18)]

                                              = 2[(96)+(216)+(144)]

                                              = 912 yards²

hence, the surface area of the box is 912 yards².

Learn more about Cuboid:

https://brainly.com/question/9740924

Elena plays the piano for 30 minutes each practice day.

The total number of minutes p that Elena practiced last week is a function of n, the number of practice days.

What is the domain for this function?
What is the range of this function?

Answers

Answer:

Step-by-step explanation:

f(n)=30n

domain all real numbers

range all real numbers

I think.

Domain is {0, 1, 2, 3, ...} and range is {0, 30, 60, 90, ...} for function p=30n.

What is a function?

A relation is a function if it has only One y-value for each x-value.

The function that relates the total number of minutes practiced, p, to the number of practice days, n, is given by:

p = 30n

where 30 is the number of minutes Elena practices each day.

Since we cannot have negative practice days, the domain of the function is the set of non-negative integers:

Domain: {0, 1, 2, 3, ...}

The range of this function is the set of all possible values of p that can be obtained by plugging in values of n from the domain.

In this case, since the function only outputs non-negative values, the range is the set of non-negative integers:

Range: {0, 30, 60, 90, ...}

Hence, Domain is {0, 1, 2, 3, ...} and range is {0, 30, 60, 90, ...} for function p=30n.

To learn more on Functions click:

https://brainly.com/question/21145944

#SPJ2

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