![smolemily](/avatars/33345.jpg)
smolemily
01.08.2019 •
Mathematics
There are as many girls as there are boys in a class. 8 girls went for a dance competition. now there are twice as many boys as there are girls in the class. how many students were there in the class initially?
Solved
Show answers
More tips
- 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...
- C Computers and Internet What Are Peers and Seeds in Torrenting?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
Answers on questions: Mathematics
- M Mathematics A company makes wax candles shaped like rectangular prisms. Each candle is 5 cm long , 4cm wide, 11 cm tall. If the company used 5,940 cm3, how many candles did they made...
- M Mathematics Ralph has grades of 93, 88 and 76, and he has a report grade to average with these three. Which inequality could be used to determine the lowest grade x he can make on the report...
- M Mathematics I HAVE UNTIL SUNDAY TO SUBMIT ALL OF MY MISSING ASSIGNMENTS SO PLSS PLZZZ PLEASE ANSWER a. and b. OR AT LEAST ANSWER JUST ONE OMGGGGSHSHSH...
- M Mathematics A number in expanded form is shown. 4 x 10 + 6 x 1 + 3 x 1/10+ 7 x 1/100 What is the number in decimal form?...
- M Mathematics How do i substitute to solve for x...
- M Mathematics What is the factorization of 2x2 + 5x + 3? O A. (2x+3)(x + 1) O B. (2x + 3)(x + 3) O C. (x+3)(x + 3) O D. (x+3)(x + 1) Help ASAP!...
- M Mathematics Find y in terms of x if dy/dx= x^8y^-7 and y(0) = 5...
- M Mathematics A television manufacturer has three locations where it is finally assembled. Plants A, B, and C supply 65%, 15%, and 20% respectively of the televisions used by the manufacture....
- M Mathematics PLEASE HELP MEE FAST...
- M Mathematics A newly hired telemarketer is told he will probably make a sale on about 12 of his phone calls. The first week he called 200 people. Find the mean, variance, and standard deviation....
Ответ:
The number of boys is the same as the number of girls.
x = y
The number of boys is twice the number of girls when 8 girls left.
2(x - 8) = y
x = y (1)
2(x - 8) = y (2)
Sub (1) into (2)
2(y - 8) = y
2y - 16 = y
2y - y = 16
y = 16
There were 16 boys and 16 girls initially.
16 + 16 = 32
There were a total of 32 students in the class initially.
Ответ:
ah i dont get it whats your point btw tnx