tewilliams1
11.07.2021 •
Mathematics
a)out of 300 students In a class 60% of the students took physics and 35 students took chemistry and 20% of the students did not take any of this subject. how many students take both the subject
Solved
Show answers
More tips
- S Style and Beauty Unbelievable Hairstyles for Long Hair - 2021 Trends...
- H Health and Medicine How to Whiten Teeth and Get the Perfect Smile...
- F Food and Cooking How to Make Thin Pancakes: Recipe and Tips...
- S Style and Beauty Is Hot Scissor Haircutting Beneficial or Dangerous?...
- S Style and Beauty How to Get Rid of Under Eye Bruises?...
- F Food and Cooking Is Bacon Good for You?...
- S Style and Beauty Discover the Art of Nail Design: How Do You Paint Your Nails?...
- P Philosophy How to Develop Extrasensory Abilities?...
- O Other Everything You Need to Know About Kudyabliks...
- C Computers and Internet The Twitter Phenomenon: What it is and How to Use it...
Answers on questions: Mathematics
- M Mathematics The graph of the function f(x) = (x + 2)(x + 6) is shown below. which statement about the function is true?...
- M Mathematics Whats the distance between (3,5) and (5,3)...
- M Mathematics The first one: i’ll make brainliest answer this is due tomorrow pleasseesse...
- M Mathematics John has an account balance of -$30.00 and steve has an account balance of -$50.00. who has more debt?...
- M Mathematics Which of the following are advantages of certificates of deposit (cds) over savings accounts? i. cds are more readily accessible than savings accounts. ii. cds offer greater interest...
- M Mathematics Dale brown ordered 3/4 truckload of merchandise. if approximately 1/3 of the truckload has been unloaded, how much remains to be unloaded...
- M Mathematics What formula tells the cost, in dollars, if chocolate chip cookies are $2.50/ dozen and lemon frosteds are $1.50/dozen? let c=number of dozens of chocolate chip cookies; l=number...
- M Mathematics The original price of a computer was reduced by $250. the new discounted price is $1499. if p = the computer s original price in dollars, which mathematical sentence expresses...
- M Mathematics V^3 times v^4 times v = pretty sure i add the exponents, correct?...
- M Mathematics Find the area of a rhombus with sides of length 10 in. and longer diagonal of length 16 in....
Ответ:
25 students take both subjects.
Step-by-step explanation:
Solve for 60% of 300 students:
60/100 = x/300
Cross multiply:
60 × 300 = 100 × x
18000 = 100x
Divide both sides by 100:
180 = x
Solve for 20% of 300 students:
20/100 = x/300
20 × 300 = 100 × x
6000 = 100x
60 = x
Solve for the percentage of students in chemistry:
x/100 = 35/300
x × 300 = 100 × 35
300x = 3500
x = 11.66666...7
x = about 11.7%
Find the difference in percentages:
100 - 60 - 20 - 11.7
8.3
8.3% take both subjects
Solve for 8.3% of students:
8.3/100 = x/300
8.3 × 300 = 100 × x
2490 = 100x
24.9
About 25 students
Check your work by adding all the students together (to get to 300):
25 + 60 + 180 + 35
300 students total
This is correct!
Ответ:
im sorry but there are no attachments