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2 years ago

Peter is twice the age of Sara. If their total age is 27 years. how old is Sara?

Mathematics

2 answers:

Pavlova-9 [17]2 years ago

8 0

Answer:

Sarah is 9

Step-by-step explanation:

9*2=18

18+9=27

Hope this helps!

Xelga [282]2 years ago

6 0

Answer:

Just do 27x2 bro simple as that

Step-by-step explanation:

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The pointer of the vibration measuring instrument is observed to move between the 0.1 and0.3 marks on the vertical scale, when s

Norma-Jean [14]

Answer:

Step-by-step explanation:

Given points moves b/w 0.1 of 0.3 marks Hence amplitude is 0.2

Also , frequency (w) = 100 rad/s.

Natural frequency (wn) = √K/m

K = 20 N/mm x 1000mm/1m = 20000N/M

W = 1000mm/1m = 20,000N/M

FormulaX = FolK/1 - (w/wn)²

0.2 = b/20000/1 - (100/50)²

Given forcing frequency was doubled, W1 = 2 x 100=200rad/s

X1 =b/20,000/1 - (200/20)²

0.2/11 = 1 - (200/50)²/1 - (100/50)² = 0.2/11 = -15^5– 3

X1 = 0.04

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3 years ago

paul was given 2760$ to buy toys for a group of children.A)what would be the greatest number of toys paul could buy if each toy

Radda [10]

Answer:

2760 ÷ 9 = x

x = 306

306(9) = 2754

2760 - 2754 = 6

Have a good day! :)

7 0

2 years ago

Use the grouping method to factor x^3+x^2+5x+5

Marianna [84]

Answer: MARK BRAINLIEST

23x

Step-by-step explanation:

x^3+x^2+5x+5 = 23x

6 0

3 years ago

Read 2 more answers

How to solve 325x52 traditional way

pentagon [3]

place 325 on top and line up 52 with 25 on bottom. Then multiply 2 with 5 to get 10. Place the zero bellow the line and carry the 1 over the 2. Multiply 2 times 2 to get 4 and then add one to get 5. Put the five bellow the line. Multiply 3 times 2 to get a total of 6 and bring it bellow the line. Bring a zero bellow the 0 that's bellow the line. Multiply 5 times 5 to get 25. Bring the 5 to the left of the zero you just placed and carry the 2. Multiply 5 times 2 to get 10 and add the 12. Place the 2 to the left of the 5 you just placed bellow the line and carry the 1. Multiply 5 times 3 to get 15 and add the 1 to get 16. Place the 16 to the left of the 2 you just placed bellow the line. Then add 650 plus 16250 to get an answer of 16,900.

Wow that was long and hard to explain LOL. :)

7 0

3 years ago

How to find a common denominator of 6/7 and 5/13

Aneli [31]

Just invert it like:
$7*13=91 \\ 13*7=91$

There you have your common denominator! Don't forget to multiply the numerator as well.

7 0

3 years ago