![lennyatme](/avatars/10717.jpg)
lennyatme
03.08.2019 •
Mathematics
The sum of two numbers is 82. their difference is 24. find the two numbers. (use the substitution strategy) -define the variables and write a system of equations -explain answer in a sentence -write a paragraph explaining the steps taken to solve the problem. in other words, justify and explain your steps
Solved
Show answers
More tips
- A Auto and Moto How to Deregister a Car in Moscow?...
- F Food and Cooking How to Cook Julienne? Recipes and Tips...
- D Dating, Love, Relationships 10 Useful Tips on How to Survive a Breakup?...
- F Food and Cooking Apple Cider Vinegar: The Ultimate Health and Beauty Solution...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
Answers on questions: Mathematics
- M Mathematics Which of the following is a trinomial with a constant term?...
- M Mathematics Simplify the following expression: 7y + 2x − 10y + 3x2 − 10x 3x2 − 8x − 3y 3x2 − 8x − 17y 3x2 + 8x − 3y 3x2 − 12x + 3y...
- M Mathematics What is the least common multiple of 2,3...
- M Mathematics Please help. I need this ASAP as well...
- H History What can explain the differences in salaries for different occupations...
- M Mathematics Help. I can’t seem to figure out what to do...
Ответ:
x + y = 82their sum is 82
x - y = 24their difference is 24
too bad u have to use substitution, elimination would have been easier
x + y = 82x = 82 - yso sub in 82 - y in for x in the other equation
x - y = 24
82 - y - y = 24
82 - 2y = 24
-2y = 24 - 82
-2y = - 58
y = -58/-2
y = 29
x + y = 82
x + 29 = 82
x = 82 - 29
x = 53
so ur 2 numbers are 53 and 29
Ответ:
TanQ=20/21
Step-by-step explanation:
since we know that
TanQ= opposite/Adjacent
so we are going to calculate for the adjacent using Pythagoras theorem
a^2+b^2=c^2
20^2+b^2=29^2
400 + b^2=841
b^2=841-400
√b^2=√441
b=21
so our tanQ= opp/adj
tanQ=20/21