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
How to multiply decimals when not using models​
sukhopar [10]

Answer:

You multiply it like normal numbers. But when you do, count how many numbers are behind the decimal, say there are 2 numbers behind the decimal, once you finished multiplying the numbers you would add up all the products you got and then put the first 4 numbers you wrote behind the decimal to get the final product.

Step-by-step explanation:

Say you were multiplying 14.63 and 7.74

                 

                   14.63

<u>                    x 7.74                 </u><em>Always starting from the right side of the equation</em>

                   .5852                <em>go to the left </em> <em>four digits and put a decimal then                   </em>

<em>                   ↑←←←←                just carry the decimal down and you'll  end up with  </em>

                 10.2410              <em>the final product</em>

<u>             + 102.4100                </u>

               113.2362

8 0
2 years ago
Gianna Rojas
vovangra [49]

Answer:

Step-by-step explanation:

Bdbdb

5 0
3 years ago
Which distributive property represents the area of the rectangle?
shutvik [7]
I am confident that the best option is Last one in this case.
4 0
3 years ago
What percent of 64 is 56​?
Dmitriy789 [7]

Answer:

85

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
(a) Count the number of ways to select a sample of 3 people to serve on a board of directors from a population of 6 people______
ValentinkaMS [17]

Answer:

(a) 20 ways

(b) 0.05 or 5%

Step-by-step explanation:

(a) Assuming that the order in which people are chosen does not matter, the number of ways to select 3 people out of possible 6 is given by the following combination.

n=\frac{6!}{(6-3)!3!}=\frac{6*5*4}{3*2*1}=20\ ways

(b) In a random sampling procedure, every outcome is just as likely to occur. Therefore, the chances that any particular sample will be the one selected are:

C = \frac{1}{20}=0.05 = 5\%

8 0
3 years ago
Other questions:
  • Can someone help with this ASAP
    14·2 answers
  • Danielle constructs a scale model of a building with a rectangular base. Her model is 2 inches in length and 1 inch in width. Th
    6·1 answer
  • A baseball team played 25 games and won 10 of them. What percent of the games did they win?
    9·1 answer
  • I need help with this homework question
    7·2 answers
  • ∠ABC measures 124° and ∠MNO measures 56°. Therefore, the two angles are
    13·1 answer
  • Solve.<br><br> 12 &lt; 2x + 2 ≤ 18
    7·1 answer
  • Nigel makes the claim that x=6 is the solution to the equation 4(5x−12)−7x=5x. His work to support his claim follows. Given: 4(5
    5·1 answer
  • A ball is thrown into the air from a height of 4 feet at time t = 0. The function that models this situation is
    12·1 answer
  • PLS HELP I WILL GIVE BRAINLIST
    5·2 answers
  • I need help with my whole quiz but i will just start with this one plzzzz helpp!!!I
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!