![cg20061107](/avatars/7178.jpg)
cg20061107
24.06.2020 •
Mathematics
Which set of three angles could represent the interior angles of a triangle?
Solved
Show answers
More tips
- C Computers and Internet How to Download Videos from YouTube? Simple Steps to Download Any Content...
- S Style and Beauty Tricks and Tips: How to Get Rid of Freckles...
- H Health and Medicine How to perform artificial respiration?...
- C Computers and Internet How to Get Rid of Windows Genuine Check?...
- F Food and Cooking The Disease That Haunted Abraham Lincoln...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- S Style and Beauty How are artificial nails removed?...
- F Family and Home How to Sew Curtain Tapes: Best Tips from Professionals...
- H Horoscopes, Magic, Divination How to Cast a Love Spell on a Guy? Guide for Guys...
- F Family and Home How to Properly Use a Water Level?...
Answers on questions: Mathematics
- H History What was most likely the scientists’ purpose in writing this “Preliminary Statement”? Support your answer with evidence from the text....
- M Mathematics . Complete the following table,DiscountSelling PriceP850Rate of Discount30%Sale Price12.11.Mark-up RateSelling PriceOriginal PriceP500Mark-up PriceP25013.14.RateTimePrincipal...
- H History Explain how we choose the President and share what you believe to be the strengths and weaknesses of this system?...
Ответ:
Ответ:
Correct Question
In the table shown, the sum of each row is shown to the right of the row and the sum of each column is shown below the column. What is the value of L?
L=7
Step-by-step explanation:
From the first row: 2J+K=5
Therefore: K=5-2J
From the second column, 2K+J=7
Substitute K derived above into 2K+J=7
2K+J=7
2(5-2J)+J=7
10-4J+J=7
-3J=7-10
-3J=-3
J=1
Recall: K=5-2J
K=5-2(1)=3
K=3
From the third column, J+2L=15
1+2L=15
2L=15-1=14
L=7
Therefore, the value of L=7
CHECK: