![ballin2126](/avatars/43169.jpg)
ballin2126
26.02.2020 •
Mathematics
What is N?
10 points!!
Solved
Show answers
More tips
- O Other What is the oldest joke ever told?...
- F Food and Cooking How to Make Lazy Cabbage Rolls? Simple Steps to a Delicious Dish...
- F Food and Cooking Unusually Delicious Shashlik - Follow the Etiquette of Proper Preparation!...
- L Leisure and Entertainment Couchsurfing: A New Way to Travel...
- G Goods and services Which TV is better - LCD or Plasma?...
- S Sport How to Learn to Pull Up on Monkey Bars?...
- L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
- C Computers and Internet Where did torrents.ru move to?...
- B Business and Finance Understanding Cash Flow: What It Is and How It Works...
- C Computers and Internet What Are Peers and Seeds in Torrenting?...
Answers on questions: Mathematics
- M Mathematics HELP ASAP: The levels of organization within an organism are , molecule, cell, , organ, and organ system. A atom; tissue B compound; kidney C element; limb D nucleus; membrane...
- M Mathematics How to write 712 over 1000 as a decimal...
- M Mathematics How do you find your equation of the line of where your point (coordinates) is on an x and y number line...
- M Mathematics The united states postal service charges $0.55 to mail a first-class letter that weighs up to 1 ounce. each additional ounce costs $0.15. which equation represents the situation?...
- M Mathematics Order the value to least to greatest -4,-5,-4,3,-6...
- M Mathematics Will give brainliest you are trying to get your parents to you buy a dog and some cats. you pay the adoption fee of $400 for the dog and adopt two cats for free. you pay for the cat...
- M Mathematics Write the equation of the line given 2 points that it passes through (-3,7)& (-9,5)...
- M Mathematics Ñand wý intersect at point z none of these point x point y...
- M Mathematics The quotient of a number and negative one increased by eleven is less than or equal to fifteen...
- M Mathematics 19 times 70 using distributive property...
Ответ:
87.37
Step-by-step explanation:
Pythagorean Theorem :)
Ответ:
(a) x + 3(x + 4) = 5(x + 2) - 5
(b) youngest: 7 years old
middle: 9 years old
oldest: 11 years old
Step-by-step explanation:
(a)
We know that x is the youngest child's age. Since the sisters' ages are consecutive odd integers, we know that the ages differ by 2. So, the middle sister's age is x + 2 and the oldest sister's age is x + 4.
Our equation to model the sentence "the sum of the age of the youngest and three times the age of the oldest is five less than five times the middle sister's age" would be:
x + 3 * (x + 4) = 5 * (x + 2) - 5
x + 3(x + 4) = 5(x + 2) - 5
(b)
Now, we can just solve the equation above:
x + 3(x + 4) = 5(x + 2) - 5
x + 3x + 12 = 5x + 10 - 5
4x + 12 = 5x + 5
x = 12 - 5 = 7
So, the youngest sister is 7 years old.
That means the middle sister is 7 + 2 = 9 years old, and the oldest sister is 9 + 2 = 11 years old.
The ages, then, are:
youngest: 7 years old
middle: 9 years old
oldest: 11 years old