What is the value of x if (15*sqrt(x)) / sqrt(5) = 6*sqrt(5)

Note: sqrt means square root, and * means multiply method (overall aim is to make x the subject): multiply both sides by sqrt(5) to get: 15 * sqrt(x) = 6 * 5further expand the right hand side to get: 15 * sqrt(x) = 30divide both sides by 15 to get: sqrt(x) = 2square both sides to find x: x = 4answer: 4

CA
Answered by Catherine A. Maths tutor

3249 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

A rectangle has an area of 20 cm^2.  Its length and width are enlarged by scale factor 3.  Find the area of the enlarged rectangle.


Find the equation of the straight line passing through the points (7,5) and (8, 2)


The Tour de France is 2162miles long. A cyclist knows his average speed his 12.37 miles/hour from his previous races. For the Tour de France the cyclist knows he will cycle for 10 hours a day. Estimate how many days it will take him to complete the race.


A plane travels at the speed of 213 miles per hour. Work out an estimate for the number of seconds it takes a plane to travel 1 mile.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences