![vonyeaparker6064](/avatars/16092.jpg)
vonyeaparker6064
03.11.2019 •
Mathematics
Sara is selling rings and bracelets online.
today she made 5 rings and 3 braclets, using a total of 340 centimeters of copper wire.
each bracelet needs 4 times more wire than each ring.
how much wire is needed for each piece of jewelry?
write and solve a system of equations.
Solved
Show answers
More tips
- F Family and Home How to Quickly and Effectively Remove Gum from Clothing?...
- A Auto and Moto How to choose the right drive for your BMW...
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- H Health and Medicine How to Treat Whooping Cough in Children?...
- H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
Answers on questions: Mathematics
- M Mathematics Frank is designing a new walkway for his house. He is using concrete stones to make the walkway. He knows he will need 50 pounds of sand for every 10 concrete stones...
- M Mathematics The sum of 2 and a number is 7. write and solve an equation to find the missing number....
- M Mathematics Tina lost 3 pounds on the first week of her diet. she gained a pound on the second week, and then lost 2 pounds a week during every week afterwards . she has been dieting...
- M Mathematics Kyle had 5/7lb of birdseed. each bird feeder holds 1/5 lb of seed. can kyle fill 5 bird feeders...
- M Mathematics What is the simplest form for 36 over 9...
- M Mathematics Agroup of 18 people ordered soup and sandwiches for lunch .each person in the group had either one soup or one sandwich.the sandwhiches cost $7.75 each and the soups...
- M Mathematics What is the product of (2p + 7)(3p2 + 4p – 3)? a=6p3 + 29p2 – 34p + 21 b=6p3 + 29p2 – 22p + 21 c=6p3 + 29p2 + 22p – 21 d=6p3 + 29p2 + 34p – 21...
- M Mathematics How do you round 160,656 to the nearest ten thousand...
- M Mathematics What is 1487.9286 rounded to the nearest penny...
- M Mathematics The acceleration of an object due to gravity is 32 feet per second squared. what is acceleration due to gravity in inches per second squared? inches per second squared...
Ответ:
20 cm of wire is needed for rings
80 cm of wire is needed for bracelets
Step-by-step explanation:
We can set up the following system of equations:
Substituting b with 4r in the first equation:
Thus, 20 cm of copper wire is needed for each ring, and:
Therefore, 80 cm of copper wire is needed for each bracelet.
To verify our numbers, if Sara made 5 rings and 3 bracelets, she would need (20 cm × 5) + (80 cm × 3) = 100 cm + 240 cm = 340 cm of copper wire. This is correct.
Ответ:
#CoL