![yesharabaskoro](/avatars/38188.jpg)
yesharabaskoro
21.05.2021 •
Mathematics
Three yrs hence, a men will be three time his brother age and the sum of present age is 18 find their present age
Solved
Show answers
More tips
- C Computers and Internet Step-by-Step Guide on How to Download Music to Your iPhone...
- A Animals and plants Unraveling the Mystery of Loch Ness: What Does the Loch Ness Monster Look Like?...
- L Leisure and Entertainment Should You Buy a Ceramic Knife?...
- C Computers and Internet How to easily and quickly disable Firebug in Gmail and Google Docs...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
Answers on questions: Mathematics
- M Mathematics 1. Use the graph that shows the solution to f(x)=g(x) .f(x)=73x−3g(x)=2x−4What is the solution to f(x)=g(x) ?Select each correct answer.A. - 1/2b. 0c. 2d. 32. Use the graph that...
- M Mathematics A camera dropped from a boat descends 9 meters every minute. what will be the change in the location of the camera after 5 minutes? A. 45mm B.-14mm C. 14mm D. -45...
- M Mathematics On a test students were to express in scientific notation the length of a particular bacterium that was 0.000027 millimeters long. Four friends put the following answers. Which...
- M Mathematics Hi friend me and just came here to chat when your board...
- M Mathematics 3 children build a giant sandcastle in 4 hours, how long will it take... a)1 child, b)5 children...
- M Mathematics HELPPP What’s the slope of line. (-6,19) (8,19)...
- M Mathematics Which figure has rotation symmetry?...
- M Mathematics Mr. Martin and his son, Luke, decide to walk a 12 kilometer trail. Mr. Martin takes a 1-hour head start and walks at a pace of 3 km/hr. Explain how fast Luke should walk to reach...
- M Mathematics Which polynomial correctly combines the like terms and expresses the given polynomial in standard form? 8mn5 – 2m6 + 5m?n4 - mn+ n6 - 4m6 + 9m2n4 - mn5 - 4m3n3 n6 + 7mn5 + 14m?n4...
- M Mathematics In ΔRST, r = 52 cm, s = 55 cm and ∠T=48°. Find the length of t, to the nearest centimeter....
Ответ:
Step-by-step explanation:
Let the age of a man = x
Age of his brother = y
Three yrs hence, a man will be three time his brother age
This is written as:
x + 3 = 3(y + 3)
x + 3 = 3y + 9 Equation 1
The sum of present age is 18
= x + y = 18
x = 18 - y
We substitute 18 - y for x in Equation 1
find their present age
18 - y + 3 = 3y + 9
Collect like terms
21 - 9 = 3y + y
12 = 4y
y = 12/4
y = 3 years
x = 18 - y
x = 18 - 3
x = 15 years
Ответ:
A. Angle Y is a right angle.
B. The measure of angle Z is 45°.
E. The perpendicular bisector of Line segment X Z creates two smaller isosceles triangles.
Step-by-step explanation:
I hope these are correct and help you guys.