![jordanrose98](/avatars/8105.jpg)
jordanrose98
15.07.2019 •
Mathematics
Which is the rationalized form of the expression the square root of x divided by the square root of x +the square root of 7
Solved
Show answers
More tips
- A Auto and Moto Which alarm system to choose?...
- C Computers and Internet Porn Banner: What It Is and How to Get Rid Of It?...
- F Food and Cooking How many stages of coffee roasting are there?...
- F Food and Cooking From Latte to Espresso: Which Coffee Drink is the Most Popular on Earth?...
- F Food and Cooking Experts Name Top 5 Healthiest Teas...
- C Computers and Internet Google Search Tips and Tricks: Everything You Need to Know...
- H Health and Medicine Discover the Hidden Principles and Real Results of the Japanese Diet...
- H Health and Medicine Liver Cleansing - Rejuvenation for the Body?...
- S Style and Beauty Is Photoepilation the Solution to Unwanted Hair Forever?...
- S Style and Beauty Unbelievable Hairstyles for Long Hair - 2021 Trends...
Answers on questions: Mathematics
- M Mathematics Find the circumference of a circle with an area of 201.06 square inches....
- M Mathematics Katie is 1.47 m tall. George is 8 cm shorter than Katie. How tall is George? Give your answer in m...
- E English Why do you think the author chose timothy rather than sam or his father as narrator?...
- M Mathematics Solve the following equation for AA 4=gA...
- H History 7. Which group was responsible for the results described below? Developed a tribute system Reestablished trade along the Silk Roads Created an empire from Eastern Europe to...
Ответ:
I assume your goal is to rationalize the denominator -
So you need to multiply the denominator by its conjugate.
So we have:
->
gg
Ответ:
60
Step-by-step explanation:
last year 1/5 of the class played sports, so s = (1/5) c
the next year, s increased by 5, c increased by 10 and the fraction changed to 1/4, so for the next year (s+5) = (1/4)(c+10)
To solve this we can substitute s = (1/5)c from the first equation into the second, so
((1/5)c + 5)=(1/4)(c+10), simplify both sides
(1/5)c + 5 = (1/4)c + 10/4, simplify 10/4 to 5/2
(1/5)c + 5 = (1/4)c + 5/2, multiply both sides by 20 to eliminate fractions (least common multiple of 2, 4 and 5)
4c + 100 = 5c + 50, subtract 4c, subtract 50 from both sides
50 = c, number of students in class last year was 50, this year is 10 more, so this year is 60