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
STatiana [176]
3 years ago
14

Robin is twice as old as Earl, and in 6 years he will be three times as old as Adam, who is 8 years younger than Earl. Find thei

r present ages.
Mathematics
1 answer:
valkas [14]3 years ago
7 0

Answer:

Since, Robin is twice as old as Earl,

Thus, the ratio of the age of robin and earl = 2 : 3

Let the age of robin = 2x and the age of earl = 3x

Where x is any number,

According to the question,

3×Age of Adam = 2x + 6

Age of Adam = 1/3(2x+6)

Also, Age of Adam = Age of earl - 8

⇒ 1/3(2x+6) = 3x - 8

⇒ 2x + 6 = 9x - 24

⇒ -7x = - 30

⇒ x = 30/7

Hence, the age of Robin = 2x = 2×30/7 = 60/7 years

The age of Earl = 3x = 3×30/7=90/7 years

The age of Adam = 34/7 years

You might be interested in
Iven 5 different letters, how many different ways can you arrange 3 of them (whether they spell a word or not)
nevsk [136]
Permutation so 5!/(5-3)!=5!/2!= 5 x 3 x 4= 60 ways.
4 0
4 years ago
Three of four numbers have a sum of 22. If the average of the four numbers is 8, what is the fourth number ?
KatRina [158]
X+y+z=22

(x+y+z+t)/4=8
subsitute
x+y+z=22
(22+t)/4=8
multiplly by 4
22+t=32
subtract 22
t=10

the fourth number is 10
3 0
3 years ago
Three shirts and two pairs of pants cost $40. Four shirts and one pair of pants cost $37.50. How much does one shirt cost?
taurus [48]

Answer:

d, 700

Step-by-step explanation:

it's the only one that makes sense

4 0
3 years ago
What are three powers that have values greater than 500 and less than 550
igomit [66]

Solution:

The three powers whose value is greater than 500 and less than 550 can be find by following procedure.

We will solve this problem by Hit and trial method by finding the squares, cubes, fourth power, Fifth Power,...etc. of different natural numbers.

23²= 529

8³ = 8 × 8 × 8 =512

2^8=512

The three powers are →→→Eighth power of 2, Square of 23, and Cube of 8.

8 0
3 years ago
Read 2 more answers
Jason has 208 baseball cards. This is 52 less than the number of cards that Robert has.
V125BC [204]

Answer:

B) R - 52 = 208

Step-by-step explanation:

Robert has 52 more cards than Jason, who has 208, so Robert has 208 + 52 cards. This can be turned into:

R = 208 + 52

then subtract 52 from both sides:

R - 52 = 208 + 52 - 52

R - 52 = 208

and that's the answer

4 0
3 years ago
Other questions:
  • Hank brought a fish tank
    14·2 answers
  • which of the following is not a way to represent the solution of the inequality 8x − (5x 4) greater than or equal to −31? a. x g
    5·1 answer
  • In 10 mins a heart can 700 times. How many mins will a heart beat 140 times?
    10·1 answer
  • Victor left his house riding his bike at a speed of 18 km/hr. When Victor was 1/2 km from his house, his brother Alex left the h
    10·1 answer
  • WHat is the property for 5x+10=24-2x
    15·1 answer
  • Si yo poseo una masa de 95 Kg, ¿Cuántos Newtons de fuerza ejerce mi masa?
    5·1 answer
  • What is the measure of n?
    13·1 answer
  • Nathaniel is using the quadratic formula to solve 0 = x2 + 5x - 6. His steps are shown below/attached
    7·2 answers
  • 4)
    15·1 answer
  • Please help me i’ll give brainlist and points
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!