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
svetlana [45]
3 years ago
8

5 years ago, the age of a man was 7 times the age of his son. After five years, the age of the man will be 3 times the age of hi

s son from now. How old are the man and the son now?
Mathematics
1 answer:
Feliz [49]3 years ago
3 0

Answer:

10 years

40 years

Step-by-step explanation:

let present ag e of son=x

5 years ago age of son=x-5

5 years ago age of man=7(x-5)=7x-35

present age of man=7x-35+5=7x-30

after 5 years

age of son=x+5

age of man=7x-30+5=7x-25

also 7x-25=3(x+5)

7x-25=3x+15

7x-3x=15+25

4x=40

x=10

age of son=10 years

age of man=7*10-30=70-30=40 years

You might be interested in
If i have a fish tank is 1/3 full of watet. If i add abither, 4 gallins of water it will be comoletely full. How many gallons wo
tresset_1 [31]

Answer:

1/2 gallons

Step-by-step explanation:

since 1/3of the tank is already full and another 4 gallons fills it up

4 gallons= 2/3 of the tank or the tank is 6 gallons total

75% is equal to 3/4

6*3/4=4 1/2 gallons

since it is 1/3 or 4 gallons full

4 1/2 -4= 1/2

7 0
3 years ago
What number is the opposite of -69?<br><br> What number is the opposite of the opposite of -69?
grandymaker [24]

Answer:

69, -69

Step-by-step explanation:

If the number is positive, the opposite of it is the same number, but negative.

If the number is negative, the opposite of the number is the same number, but positive.

So, -69 would be 69.

69 is the opposite of -69, so the opposite of 69 would go back to -69.

8 0
3 years ago
Read 2 more answers
If square root of x has a decimal approximation of 3.4, then x is between which two integers? In your final answer, include all
Zina [86]

Answer:

You know that √x = 3.4, therefore x = 3.4² = 11.56

Hope I helped :)

6 0
3 years ago
Read 2 more answers
What are some steps for the equation 2=z-14
IgorLugansk [536]
Since the opposite operation of addition is subtraction you subtract. So you add 14 both sides and now z is by itself. finally just add 2 and 14 which is 16

5 0
3 years ago
What is the equation in point slope form of the line that passes through (0,5) and (-2,11)
tester [92]
The point slope form equation is 3x + y = -35
7 0
3 years ago
Other questions:
  • When the smaller of two consecutive integers is added to three times the larger the result is 31. find the integer
    7·1 answer
  • In terms of the scientific method, the purpose of an experiment is
    9·1 answer
  • Solve for y.<br> 20y - 14y + 4 = 16<br> y =<br> Submit
    5·2 answers
  • A poll asks shoppers at the mall how many cups of water they typically drink in a day. The results of the poll are listed below.
    10·2 answers
  • Write an expression that represents the sum of a number x and 11​
    8·1 answer
  • Find the value of log, 1/2 462 to four decimal places.
    6·1 answer
  • Every integer number is also a. Irrational number b. Whole number c. Natural number d. Rational number
    11·1 answer
  • 5. Molly has 5 sticks of lengths 2,4,6,8, and 10 inches. Using three sticks at 1 point
    7·1 answer
  • I can't do this, can someone explain​
    10·2 answers
  • Monica took a survey of her classmates' hair and eye color. The results are in the table below.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!