robynlikesowls34205
01.02.2021 •
Mathematics
If y ∝ 
and y = 4 when x = 2.5, find :
(a) y when x = 20
(b) x when y = 5
Solved
Show answers
More tips
- L Leisure and Entertainment Choosing the Right Books to Read: Tips and Recommendations...
- L Leisure and Entertainment What can be considered an antique: defining and valuing old objects...
- B Business and Finance How to Open an Online Store? A Detailed Guide for Beginners...
- C Computers and Internet Log-in: what is it and why do you need it?...
- C Computers and Internet What is the Meaning of lol and How Did it Become Popular?...
- C Computers and Internet Clearing Cache: How to Speed Up Your Browser...
- H Health and Medicine How to Help Men Gain Weight?...
- F Family and Home How to Build a Strong Relationship with Your Child: Tips for Effective Communication...
- L Legal consultation Juvenile Justice: Who Needs It?...
- F Food and Cooking What age is appropriate for giving your child cocoa?...
Answers on questions: Mathematics
- M Mathematics Get–around cab company charges $2.50 upon entry and $2 per mile. write the function that represents the cost c of a ride of m miles....
- M Mathematics The equation for line g is given by 5y=2x-20. suppose line g is parallel to like r and line e is perpendicular to line g. point (10,-8) lies on both line r and line e....
- M Mathematics Find the slope of the line lm on the graph. a) -2 b) -1 c) -1/2 d) 1/2...
- M Mathematics The admission fee at a fair is $3.25 for children and $6.75 for adults. on a certain day, 870 people enter the fair and $3,772.50 is collected. write a system of linear...
- M Mathematics Isabella is driving 20 miles per hour. it will take her 3 hours to reach her destination...
- M Mathematics The area of a triangle is 1,440cm2. the base of the triangle is 5 times the height what is the height of the triangle...
- M Mathematics If someone could me that would be amazing...
- M Mathematics Which sequence of transformations creates a similar, but not congruent, triangle? a rotation and translation b dilation and rotation c reflection and rotation d translation...
- M Mathematics Evaluate 7(-4) - |-6| + |4| a. 13 b.-18 c. -30...
- M Mathematics 99 points for the correct answer! if not i will report you! find the slope of the line lm on the graph. a) -2 b) -1 c) -1/2 d) 1/2...
Ответ:
Step-by-step explanation:
Y = k1/x
4 = k 1/2.5
2.5 x 4 = k
10 = k
Now using this equation we will find the other answers
A) find y when x = 20
Y = k 1/x
Putting values
= 10(1/20) = 1/2 = 0.5
B) find x when y = 5
Y = k 1/x
Putting values
5 = 10 1/x
5x = 10
x = 10/5 = 2
Ответ: