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
In-s [12.5K]
3 years ago
14

Paul is three times as old as Mary and Peter is four times as old as Mary,If the sum of their ages is 64, how old are Peter,Paul

,and Mary.
Mathematics
1 answer:
uysha [10]3 years ago
7 0
Let Mary's age be x.

Paul is three times as old as Mary, so Paul's age would be 3x.

Peter is four times as old as Mary, so Peter's age would be 4x.

The sum of their ages is 64
⇒ Paul's age+ Peter's age+ Mary's age= 64
⇒ 3x+ 4x+ x= 64
⇒ 8x= 64
⇒ x= 64/8
⇒ x= 8

Paul's age is: 3x= 3*8= 24

Peter's age is: 4x= 4*8= 32

Final answer: Paul is 24 years old.
Peter is 32 years old.
Mary is 8 years old.

Hope this helps~
You might be interested in
1.44 divided by 0.4
Valentin [98]
ANSWER:
yes


EXPLANATION
4 0
3 years ago
Read 2 more answers
Which is not a way to name a line, (XYZ)?
lana66690 [7]

Answer:

YZX, YXZ, ZXY, XZY

Step-by-step explanation:

6 0
3 years ago
How do you solve this: 2y^2=x+4
marishachu [46]

To solve this for an equation that you can graph, you need to isolate the y variable. In order to do this, follow the order of operations for solving equation to get the equation.

2y^2 = x + 4 ----> divide both sides by 2

y^2 = \frac{x + 4}{2} ----> take the square root of both sides

y = \sqrt{\frac{x+ 4}{2}}

Now you have the equation solved for the y variable and can graph it.

5 0
3 years ago
Show that 3/8 ÷ 7/12 =9/14
myrzilka [38]
3/8*12/7 = 36/56 = 9/14 (simplify)
4 0
3 years ago
The length of a rectangular poster is 7 inches more than twice its width. Find the length of the poster if its perimeter is 110
Scilla [17]
Total perimeter:
2u+7 inches+2u+7 inches+1u+1u
7 inches x 2 = 14 inches
*As there are 2 lengths, there are two sets of "extra" 7 inches.*
(2ux2)+1u+1u=6u
6u=110 inches - 14 inches = 96 inches
1u = 96 inches ÷ 6=16 inches (width)
(2x16 inches)+7 inches=32 inches+7 inches=39 inches

Ans: 39 inches

6 0
3 years ago
Other questions:
  • Mon poured 100 kilograms of water into 10 kg of salt. He made ___ kilograms of ___% salt solution.
    10·2 answers
  • How do you solve this equation? -5/4+(-7/9)= Thanks
    11·1 answer
  • 8. Fill in the missing reasons (one for each step).
    10·1 answer
  • Express in the form 1 : n 4 : 12
    8·2 answers
  • Find the value of x.<br> Please help
    10·2 answers
  • A standard toilet uses 1.6 gallons per flush. If a toilet is flushed five times per day, how much water will be used in a month
    8·2 answers
  • I need help with this fast i apericiatte it
    7·2 answers
  • Find the x and y intercepts <br> 4x-3y=12
    7·2 answers
  • Write an expression to describe the
    10·1 answer
  • #
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!