vedros
17.12.2020 •
Mathematics
Kevin wants to add 3 more cichlids to the aquarium. He does not want to change the ratio
among the three types of fish, so he will add more catfish and tetrás as well.
If he adds 3 more cichlids to the aquarium, how many more catfish and how many more tetras
should he add to the aquarium? 5
Solved
Show answers
More tips
- S Sport How does Bodyflex work: what is it and how does it work?...
- 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...
Ответ:
x = -2y-16
substitute in one for the other:
y = -3(-2y-16) + 7
y = 6y + 48 + 7
y = 6y + 55
-5y = 55
y = -11
x = -2y - 16
x = -2(-11) - 16
x = 6