1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kay [80]
3 years ago
10

Quadratic equation

Mathematics
1 answer:
Murrr4er [49]3 years ago
8 0

Answer:

<h2>            46</h2>

Step-by-step explanation:

x          -  age of a son three years ago

3x        -  age of a father three years ago

x + 3      -  age of the son now

3x + 3       -  age of the father now

x + 3 + 5       -  age of the son in five years time

3x + 3 + 5       -  age of the father in five years time

in five years time, the father will be twice as old as his son, so:

3x + 3 + 5 = 2(x + 3 + 5)

3x + 8 = 2x + 16

3x - 2x = 16 - 8

  x = 8

x + 3 + 4       -  age of the son in four years time

8 + 3 + 4 = 15

3x + 3 + 4       -  age of the father in four years time

3×8 + 3 + 4 = 31    

the sum of their ages in four years time:

15 + 31 = 46

You might be interested in
Each of the letters of the word ALABAMA are written on a piece of paper and then
Kruka [31]

Answer:

3/7

Step-by-step explanation:

There are 7 letters in ALABAMA. And there are 4 A's in ALABAMA. So if you're trying to not get an A then you would subtract 4 from 7. Which you would get 3/7 of the letters in ALABAMA are not A.

7 0
2 years ago
Que es él valor dé 9 en asistencia
timurjin [86]
No sé lo siento esqje necesito mas puntos lol hahaha
4 0
3 years ago
Brionna bought a house for $300,000 in 2000. Unfortunately, the market is not doing so hot and each year she loses $2,000 in val
dlinn [17]

Answer:

the answer to the problem is m=-2000

5 0
2 years ago
Bugbug0221 hollo hi<br> wut r u doing
givi [52]

Answer:

STealing points

Step-by-step explanation:

and you

6 0
2 years ago
Read 2 more answers
Find the area and perimeter
Ivenika [448]

Answer: area = 379.7 mm²

Perimeter = 95.84 mm

Step-by-step explanation:

The composite shape contains a semi circle and a trapezoid.

The area of a semi circle is

1/2 × πr²

Radius = diameter/2

Radius = 20/2 = 10 mm

Area = 1/2 × 3.14 × 10 = 15.7 mm²

Area of trapezoid is expressed as

1/2(a + b)h

Area = 1/2 × (20 + 32)14

Area = 1/2 × 52 × 14) = 364mm²

Area of the composite shape is

15.7 + 364 = 379.7 mm²

Formula for determining the perimeter of the semicircle is

1/2 × πd

Perimeter = 1/2 × 3.14 × 20 = 31.4mm

Looking at the attached photo, we would determine the slant height,h, by applying Pythagorean theorem which is expressed as

Hypotenuse² = opposite side² + adjacent side²

h² = 12² + 14² = 340

h = √340/= 18.44

Perimeter of the composite shape is

31.4 + 14 + 32 + 18.44 =95.84 mm

7 0
3 years ago
Other questions:
  • Evaluate and answer in standard form:<br><br>4^2/3^2​
    10·1 answer
  • State what kind of variation you have, then solve the problem. A 15-person road crew is scheduled to finish repairing a highway
    14·1 answer
  • How many 6 ounce cups can be filled from 4 gallons of juice?
    6·2 answers
  • What is the domain of f(x) = cos(x)?
    11·2 answers
  • What is the product of the polynomials below?
    14·1 answer
  • Help this is due by midnight
    10·2 answers
  • Help please I'm to stupid for this​
    13·1 answer
  • Here's another question, same one (kind of) <br> 5x - 8 = 3x + 4
    7·1 answer
  • HELP PLEASE WILL CROWN BRAINLIEST!!
    15·1 answer
  • C=<br> 5/9<br> (F−32)<br> i need help with this question its half of my grade plssss thxx
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!