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.
1 answer:
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
A. 6 because 30/5= 6 B. She has gotten 35 points because 7*5=35
Answer:9.75
Step-by-step explanation:12x12 =144 and 7x7= 49 subtract 144-49 and get 95 the square root of 95 is approximately 9.747 rounded to the nearest hundredths place is 9.75
Answer:
Lucey reads 10 pages fewer than Carey.
Answers for #5
- s/10
- 8*b
- h+7
- 3*r-8
Question 6
62 miles/hour x 4 hours = 248 miles traveled