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
boyakko [2]
3 years ago
13

A father is 60 yrs old son is half his age .How old was the boy when his father was four times his age

Mathematics
2 answers:
Anna35 [415]3 years ago
8 0
Let F be the father's age, let S be the son's age
when: F = 60,
S = F/2 = 60/2 = 30

this means S = F-30

this means:
F/4 = F -30
F = 4F - 120
-3F = -120
F = 40

If the boy was 4 times less his father's age,
at this instance:
S = 40/4 = 10

therefore the son was 10 years old, the father was 40


inna [77]3 years ago
4 0
Let f be the fathers age and let s be the sons age

f = 60 s = 30
when f = 45
s = 15 which is only a third if his fathers age

when f = 40
s = 10 which is a quarter of his fathers age

therefore when his father was 4 times his age, the son was 10
You might be interested in
A coin is tossed 6 times. what is the probability that the number of heads obtained will be 2? express your answer as a fraction
Valentin [98]
For this you will have to make a tree diagram
it will be so much easier although there is a way to do it

probability of getting heads is = 1/2 there for 10 tosses its (1/20)^10

4 0
3 years ago
Find the unknown <br>4×?× 8=64
iVinArrow [24]
2 is the correct answer....gitty up
7 0
3 years ago
Read 2 more answers
4+ (-3) - 2*(-6)<br> What is the answer to
konstantin123 [22]

Answer:

13

Step-by-step explanation:

4+(-3)-2*(-6)

4-3-2*-6

1-(-12)

1+12

13

4 0
3 years ago
Read 2 more answers
Fruit-O-Rama sells dried pineapple for 0.25 per ounce. Mags spent a total of 2.65 on pineapple. How much ounces did she buy?
omeli [17]
10 i think or 10.6 is the answer
3 0
3 years ago
Read 2 more answers
Which expression is equivalent to 10x2 - (2 – 3x) + (5x - 3x2)?​
djverab [1.8K]
10x^2 - (2 - 3x) + (5x - 3x^2)
=7x^ + 2x - 2
5 0
3 years ago
Read 2 more answers
Other questions:
  • They building in the city has a rectangular base. The length of the base measures 60 ft less than twice the width. The perimeter
    10·1 answer
  • The number 509 is a prime number what is the next largest prime
    8·2 answers
  • Find the length of side x in simplest radical form with a rational denominator
    7·2 answers
  • The scale on a map is 1.5 cm: 60 miles. If two cities are 2 cm apart, then how many miles separate them?
    5·1 answer
  • Hich statement best describes a graph of paired points that form a proportional relationship?
    9·1 answer
  • a car can complete a journey of 300 km with a speed of 60 km per hour I) how much does it take the to complete the journey and w
    7·1 answer
  • Write the number in scientific notation. 0.00000625
    10·2 answers
  • There are 3 white marbles, 4 yellow marbles and 5 blue marbles. What's the probability of having one blue marble when we randoml
    11·1 answer
  • What is an equation in point-slope form of the line that passes through (−1,−4) and (2, 5)?
    10·2 answers
  • 1) Answer the following questions for the function y= 4^x
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!