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
lord [1]
2 years ago
11

The sum of the ages of three brothers Tema,Juma and Abdul is 65 years. Juma is twice as old as Abdul and a half times as old as

Tema. Determine their present age
Mathematics
1 answer:
Ber [7]2 years ago
7 0

Answer:

Tema = 26 years

Juma = 13 years

Abdul = 26 years

Step-by-step explanation:

Let their ages be represented as:

Tema = x

Juma = y

Abdul = z

From the question, we are told that:

Juma is twice as old as Abdul

y = 2z

z = y/2

= 0.5y

And Juma is a half times as old as Tema.

y = 1/2x

y = 0.5x

x = y/0.5

x = 2y

Hence,

x + y + z = 65

2y + y + 2y = 65

= 5y = 65

y = 65/5

y = 13 years

Since y = Zuma's age, Zuma is 13 years old

From the above question

Since 2y = z

y = 13

2 × 13 = z

z = 26

Since z = Abdul's age, Abdul is 26 years old

From the above question

x = 2y

y = 13 years

x = 2 × 13 years

x = 26 years.

Since x = Tema's age

Tema is 26 years.

Therefore, their present ages are:

Tema = 26 years

Juma = 13 years

Abdul = 26 years

You might be interested in
Please answer number one as well as show your work thank you!
sveta [45]

√2 is irrational

a rational number Q can be expressed in the form \frac{a}{b} where a and b are integers.

- 18 = \frac{- 18}{1} ⇒ rational

\frac{2}{3} ⇒ rational

3.14 = \frac{314}{100} ⇒ rational

√2 = 1.414213562...... ⇒ irrational


8 0
2 years ago
To make a fruit salad for a party, Chris
Sloan [31]

Answer:

$33.81

Step-by-step explanation:

2.49*3 = 7.47 dollars for 3 pounds of strawberries

3.19*2 = 6.38 dollars for 2 pounds of blueberries

4.99*4 = 19.96 dollars for 4 pounds of pineapple

7.47 + 6.38 + 19.96 = 33.81 dollars spent in total

4 0
2 years ago
PLS HELP GIVING BRAINLESS TO CORRECT PERSON PLS HELP ASAP
irina [24]

Answer:

Correct Answer - It shows the unit rate of the graph in miles per hour.

Step-by-step explanation:

hope this helps

8 0
3 years ago
PLS HELP ME WITH MATH!!!!!​
Romashka-Z-Leto [24]

Answer:

<u>⚪</u><u> </u><u>(</u><u>4</u><u> </u><u>•</u><u> </u><u>3</u><u>)</u><u> </u><u>+</u><u> </u><u>(</u><u>4</u><u> </u><u>•</u><u> </u><u>8</u><u>)</u>

Step-by-step explanation:

4•(3 + 8)

by distributing 4 in the bracket:

=  \{(4•3) + (4•8) \}

6 0
3 years ago
A supervisor records the repair cost for 14 randomly selected refrigerators. A sample mean of $79.20 and standard deviation of $
Nitella [24]

Answer:

( $74.623, $83.777)

The 90% confidence interval is = ( $74.623, $83.777)

Critical value at 90% confidence = 1.645

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = $79.20

Standard deviation r = $10.41

Number of samples n = 14

Confidence interval = 90%

Using the z table;

The critical value that should be used in constructing the confidence interval.

z(α=0.05) = 1.645

Critical value at 90% confidence z = 1.645

Substituting the values we have;

$79.20+/-1.645($10.42/√14)

$79.20+/-1.645($2.782189528308)

$79.20+/-$4.576701774067

$79.20+/-$4.577

( $74.623, $83.777)

The 90% confidence interval is = ( $74.623, $83.777)

5 0
3 years ago
Other questions:
  • Abdul is making a map of his neighborhood. He knows the following information: His home, the middle school, and high school are
    12·2 answers
  • Kelly buys a hat and gloves. The price of the hat is 4 times as much as the gloves. The hat cost $8. What is the ratio of the co
    12·2 answers
  • Ms smith has 28 sixth graders and 35 7th graders for math.If she wants to break the two grades into identical groups without any
    14·1 answer
  • 3/5 of the class were boys. The teacher divided the boys equally into groups so the each group of boys had 1/10 of the number of
    11·1 answer
  • Every two years, how many of the 435 house seats are up for reelection at the same time?
    5·1 answer
  • What is 7/8 in decimal form
    14·1 answer
  • A roof has the shape of an isosceles triangle with equal sides 8 cm long and base 12 m long. What is the measure of the angle of
    11·1 answer
  • Rita and Tina each make $11 an hour working as cashiers at a supermarket. Last week, Rita worked r hours while Tina worked t hou
    11·1 answer
  • A park in the shape of a right triangle, one leg of the triangle is 2 kilometers long, the hypotenuse measures 2.9 kilometers ho
    14·1 answer
  • Violet is playing a board game with her friends. She earns 78 points during the game, and she receives a game-end bonus for achi
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!