Rubén preguntó a Iván por su edad, y este le contestó: si al triple de los años que tendré dentro de cuatro años le quitas el cuádruple de los que tenía hace 4 años, tendrás los años que tengo ahora más cuatro. ¿Qué edad tiene Iván?

Answers

Answer 1

Answer:

Ivan tiene 18


Related Questions

In right triangle ABC shown below, what is the length of BC?

Answers

I’m pretty sure it’s 6

Please help, I don't understand- will give brainliest and 50 coins

Answers

Answer:

meh

14fri

Step-by-step explanation:

i need help answering this but also how to do it like step by step. i don’t understand this. (9 + 7x) - 7x

Answers

Answer: 9

Step-by-step explanation: so first you remove the ( ) because they’re useless in this then once you remove then Since two opposites add up to zero, remove them from the expression then you only get left with 9.

pls answer correctly or i report you i really need to know this


the correct answer gets brain.liest


so answer correctly


pls answer correctly


pleaaaaaaaase

Answers

Answer:

final answer is d

Step-by-step explanation:

explanation multiply exponent on the outside by the inside.

btw you dont have to give me brainliest i dont really care for it i just like helping hope it's right good luck.!!;)

PLSSS HELP 50 POINTSS ILL SEND 40 MORE IF U HELPP PLSSS
The cost of the hiking trip this year is 2/3of the cost of last year's trip. This year's trip cost $32

1. Write an equation that represents the cost of last years trip.
2.What was the cost of last year's trip

Answers

1) y=53

2)53

21 is 2 thirds of 32 so you add them together and get 53. Also Y=Cost of last years trip which we determined is $53

64° (3x + 1)º Find the value of x. I need help!!
A 21
B 27
C 51
D 14

Answers

Answer:

Take away 1 from either side so the equation becomes 63=3x then divide both sides by 3 so it becomes 21=x which is your answer (option A)

Step-by-step explanation:

what is the answer to these questions I will give brainly

Answers

Answer:

1) 12 2) 1/8

Step-by-step explanation:

1) 3 times 4 = 12

2) 1/2 times 1/4 = 1/8

     

what is the answer to:x-57.6=24.3

Answers

Answer:

what

Step-by-step explanation:

Answer:

Pleas give Brainliest

x=81.9

Step-by-step explanation:

Add 57.6 to both sides of the equation.

x=24.3+57.6

Add 24.3 and 57.6.

x=81.9

Write the polynomial in standard form that represents the perimeter of the quadrilateral. 2x-9 x+5

Answers

Answer:

im pretty sure its -2x but i might be wrong

Step-by-step explanation:

subtract 5 from 3 times r what is the answer​

Answers

Answer: what is R equal to?

Step-by-step explanation:

what is the volume.
(pls hurry cause i have to turn in soon.)

Answers

Your correct answer is v= 114
V= 120
Used the formula for pyramids, the B is equal to 36 and h is equal to 10 then you just multiply 1/3 10 and 36 to get 120

Help I dont understand the Problem

Answers

Mode is the answers that occurs the most frequently in a data set. So it’s 3-4 inches.

A fish tank has 9 goldfish, 6 tetras, 5 snails and 3 platies. What is the ratio of tetras to platies​

Answers

Answer:

6:3

Step-by-step explanation:

6 tetras and 3 platies

Help ASAP I give you a cookie after you answer:)

Answers

75. 36 is the answer!!!

Can you guys help me with this

Answers

11.      f = 180-(75+65)

        f = 180 - 140

        f = 40°

12.     x = 62+51

         x = 113

         

          y = 180- 113

          y = 67°

13.       x = 360-(100+95+60)

          x = 360 - 255

          x = 105°

PLEASE MARK THIS ANSWER AS BRAINLIEST

Answer:

Answers are given in the above photos.

Hope that will help you surely.

Thank You.

Jill is driving to her parent's house at a rate of 70 miles per hour. Which equation represents the relationship between the distance, d, to Jill's parents house and the time, t, it will take her to arrive at her parent's house?

Answers:
A: d=70t
B: d+70=t
C: t=70d
D: t+70=d

Answers

Answer/Step-by-step explanation:

D = distance

T = Time

You are trying to find the Time so,

T = ???

T = 70 ?

So you are driving PER hour so --> multiply

T = 70d

Hope this helped!

A laptop has a listed price of $667.95 before tax. If the sales tax rate is 7.75%, find the total cost of the laptop with sales tax included.
Round your answer to the nearest cent, as necessary.

Answers

Answer:

$719.72

Step-by-step explanation:

Kade has $45 in savings and wants to purchase a video game console for $250. He has a coupon for 10% off, and sales tax is 8.25%. In order to be financially responsible, Kade wants to wait until he has enough in savings to not have to borrow money. If Kade is able to save $45 each week, what is the minimum number of weeks Kade should save before making his purchase?

Answers

Answer:

5 weeks

Step-by-step explanation:

First, solve for the total cost of the game console after tax and a coupon

Solve for tax:

$250 × 8.25%

Convert percentage into a decimal

250 × 0.0825

20.625

Round up to nearest hundredths place (because the unit is dollars)

20.63

Add this tax onto the original cost

250 + 20.63

270.63

Subtract the coupon from the total

270.63 - 10

260.63

Total cost is $260.63

Now let's find how much Kade needs to save so set up an equation

Variable x = number of weeks

45 + 45x = 260.63

Subtract 45 from both sides to isolate the variable

45x = 215.63

Divide both sides by 45

x = 4.791777...

Round up to nearest whole number (because units are weeks)

x = 5 weeks

What is the true solution to the equation below?
2 In eln2x - In eln 10x = In 30
X = 30
X= 75
X = 150
X=300

Answers

Answer:

x = 75 hope this helped

Step-by-step explanation:

The true solution to the equation is,

⇒ x = 75

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We have to given that;

The expression is,

⇒ [tex]2 ln e^{ln2x} - ln e^{ln10x} = ln 30[/tex]

Now, We can simply as;

⇒ [tex]2 ln e^{ln2x} - ln e^{ln10x} = ln 30[/tex]

⇒ 2 ln 2x - ln 10x = ln 30

⇒ ln (2x)² - ln 10x = ln 30

⇒ ln (2x)² / 10x = ln 30

⇒ 4x² / 10x = 30

⇒ 4x = 300

⇒ x = 75

Thus, The true solution to the equation is,

⇒ x = 75

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ7

Two rabbits land on deserted Salt Island; they breed,and the number of rabbits on the island doubles every 4 weeks. Two other rabbits arrive on deserted Pepper Island; these rabbits triple every 4 weeks. At the end of the 12 weeks, one python arrives on each island. As each python grows, the number of rabbits it can eat each week doubles. The first week, each eats 1 rabbit, the second week, 2, and so forth. How long will it take the python to wipe out the rabbits on each island?

Answers

Answer:

It will take it 7 weeks

Step-by-step explantion

In the diagram, △ABC∼△CDE. Write an equation for line k

Answers

Answer:

Step-by-step explanation:

Line AB is parallel to line CD (k) so they have the same slope.

slope=m=(y2-y1)/(x2-x1)

m=(6-0)/(4-0)

m=6/4=1.5

y=mx+b, we know m=1.5 so

y=1.5x+b, and we know it passes through point (4,0) so we can solve for b

0=1.5(4)+b

0=6+b

b=-6 so line k is

y=1.5x-6

For the parallelogram, if m<2=5x-28 and m<4=3x-10, find m<3​

Answers

5x-28=3x-10
X=9
5*9-28=40
360-40-40=280
280/2=140=m<3

Pls answer!! I’ll mark you brainlist if it’s correct!

Answers

Answer:

140 - 6(8)

140-48

140-48= 92

92 is your final answer.

Is this right? Please hurry im trying to get all my work done

Answers

Answer:

I’m pretty sure it’s right.

Step-by-step explanation:

The graph shows the function f(x). What is the function's average rate of change from x = 0 to x = 2? Enter your answer, as a simplified fraction, in the boxes.

Answers

Answer:

It's been awhile since I've done this but wouldn't it be -2x

Step-by-step explanation:

HELPP ASAP I WILL GIVE 14 POINTS

Answers

Given:

A box-and-whisker plot of data set.

To find:

The percentage of the data values that are greater than 80.

Solution:

From the given box-and-whisker plot, it is clear that:

Minimum value = 8

First quartile = 60

Median = 68

Third quartile = 80

Maximum value = 92

We know that the 25% the data value are greater than or equal to third quartile because the third quartile divides the data in 75% to 25% and 80 is the third quartile.

Therefore, about 25% of the data values that are greater than 80.

which three statements are true about the line segment CB
it's the radius of the circle

it is the circumference of the circle

it is a cord
it is 6cm long

it is diameter of the circle

it is 7cm long

it is 1.75cm long​

Answers

Answer:

1. it is 7 cm long

2. it is a chord

3. it is the diameter of the circle

Step-by-step explanation:

Here, we want to select three statements that are true about CB

From what we have, CB runs from one edge to the other, passing through the center of the circle

Also, as we can see, AD is a radius as it is the distance from the center of the circle to the circumference; CB is twice this as it is the diameter

The diameter is a chord that passes through the center of the circle and it is a radius

So let us select the correct statements;

1. it is 7 cm long

2. it is a chord

3. it is the diameter of the circle

Eighteen students decide they don't want to be
rescued and want to continue to live in the
jungle. If this represents 40% of the students,
how many students want to be rescued?
Type your answer into the box to continue.

Answers

Answer: 45

Step-by-step explanation:

18 = 40% N

18 = 0.4 N

Divide both sides by 0.4

N = 45

There are 45 students want to be rescued.

What is mean by Percentage?

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Given that;

Eighteen students decide they don't want to be rescued and want to continue to live in the jungle.

And, This represents 40% of the students.

Now,

Let the number of students want to be rescued = x

So, We can formulate;

⇒ 40% of x = 18

Solve for x as;

⇒ 40/100 × x = 18

⇒ 40x = 1,800

⇒ x = 1800/40

⇒ x = 45

Thus, The number of students want to be rescued = 45

Learn more about the percent visit:

https://brainly.com/question/24877689

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The rivers depth is three meters greater than its width. two time the rivers depth is equal to six meters more than twice its width.
PLZ write a system of equations and show ALL work
WOULD APPRECIATE A LOT

Answers

Answer:

d = w + 3 (first equation)

2d = 2w + 3 (second equation).

The second equation is equivalent to the first one.

In other words, two equations carry the same information as the first one, not more.

In the language of linear algebra, the system is dependent

You and a friend are trying to fill your pools with water. Your pool originally had 10 gallons of water, and the hose is filling it at rate of 2 gallons per minute . Your friends pool originally had 4 gallons of water in the pool, and their hose is filling the pool at a rate of 3 gallons per minute create a system of equations using the information from the problem

Answers

Answer:

y = 2x + 10

y = 3x + 4

Step-by-step explanation:

2x + 10 = 3x + 4

10 = x + 4

x = 6

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