Welcome :: Homework Help and Answers :: Mathskey.com

Recent Visits

Q&A
Unanswered
Categories
Users
Ask a Question

Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

Q&A Categories
BASIC MATH (93)
PRE-ALGEBRA (441)
ALGEBRA 1 (2,216)
GEOMETRY (864)
ALGEBRA 2 (2,745)
TRIGONOMETRY (1,186)
PRECALCULUS (1,903)
CALCULUS (2,791)
STATISTICS (129)
PHYSICS (658)
CHEMISTRY (136)
MECHANICAL ENGINEERING (64)
ELECTRICAL ENGINEERING (207)
Winplot Tutorials (2)

Most popular tags

solving-equations system-of-equations functions math slope-intercept-form physics homework-help trigonometric-identities integration substitution-method limits calculus

13,435 questions

17,804 answers

1,438 comments

777,542 users

if the ratio 25 : 4x = x : 4, what is x?

0 votes

if the ratio 25 : 4x = x : 4, what is x?

solving-equations

asked Feb 19, 2014 in ALGEBRA 1 by dkinz Apprentice

Share this question

Google+ Facebook Twitter LinkedIn Reddit

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 votes

Given

25 : 4x = x : 4

25 / 4x = x / 4

Crossmultiplication.

25 * 4 = 4 x * x

100 = 4 x ^2

25 = x ^2

√25 = x

± 5 = x

Therefore x = ±5.

Solution : The value of a x is ±5.

answered Mar 26, 2014 by friend Mentor

Please log in or register to add a comment.

Related questions

If y varies directly as x, what is the value of y in these ordered pairs? (4, 16) and (2, y)

asked Mar 4, 2014 in ALGEBRA 2 by payton Apprentice

solving-equations
direct-variation

if the space shuttle makes an earth orbit of 25,390 miles in 1.4 hours, what is the shuttles average speed?

asked Dec 4, 2019 in ALGEBRA 1 by anonymous

solving
proportion

If x+2y=10 and y+z=20 what is the value of x+3y+z?

asked May 3, 2014 in ALGEBRA 1 by anonymous

solving-equations

What is the solution to the system of equations 4x-3y+5z=7, -6x-2y+3z=4 and 9x+3y-2z=-10

asked Nov 16, 2013 in ALGEBRA 2 by harvy0496 Apprentice

system-of-equations
solving-equations
using-matrices

if the ratio of side of a triangle are 3:4:5 what is the perimeter of the triangle is 90 cm?

asked Dec 3, 2013 in ALGEBRA 2 by linda Scholar

perimeter-of-a-triangle

evaluate 4x − 2y if x = −1 and y = −5

asked Feb 28, 2014 in ALGEBRA 1 by chrisgirl Apprentice

evaluate-the-expression
solving-equations

What is x-y+=2 and 4x-3y=11 using substitution method.

asked Mar 10, 2014 in ALGEBRA 2 by futai Scholar

system-of-equations
solving-equations
substitution-method

y=-x^2+4x-4

asked Mar 11, 2014 in ALGEBRA 1 by skylar Apprentice

rational-expressions
solving-equations

Is x^2 + y^2 + 3y + 4x - 8 the equation of a circle. If yes, what is the radius.

asked May 4, 2014 in ALGEBRA 1 by anonymous

radius-of-a-circle

Let: f(x) = -3x^2 + 5x, g(x) = 4/4x-3, and h(x) = sqrt(25-2x).

asked Mar 16, 2013 in ALGEBRA 1 by andrew Scholar

functions

What is the answer for x+3y=4,-x+2y=-4 using elimination

asked Mar 1, 2014 in ALGEBRA 2 by chrisgirl Apprentice

system-of-equations
solving-equations
elimination-method

what is the solution of the system? use elimination:(x+y-3Z=8),(-x-2y+z=4) and (-x+y+4z=7)

asked Feb 20, 2014 in ALGEBRA 2 by dkinz Apprentice

system-of-equations
solving-equations
elimination-method

if i divide 2i by x^3-3x^2+4x-12 using synthetic division what is my answer

asked Dec 7, 2013 in ALGEBRA 1 by skylar Apprentice

synthetic-division

What is The Answer For p+3/4=9/10

asked Mar 10, 2014 in ALGEBRA 1 by angel12 Scholar

solving-equations

x-4/x^3-8x^2+4x-9

asked Mar 12, 2014 in ALGEBRA 2 by chrisgirl Apprentice

solving-equations

What is the simplified form of x^2-25 over x-5?

asked Nov 9, 2013 in ALGEBRA 1 by homeworkhelp Mentor

alegebra
simplified-form

If 2/3 of a number is 30, what is 1/3 of twice the number?

asked Mar 13, 2014 in PRE-ALGEBRA by abstain12 Apprentice

numeric-fractions
solving-equations

if the ratio of complentary angles is 7 to 3 what is the measure of each angle?

asked Feb 27, 2014 in GEOMETRY by rockstar Apprentice

angles-of-triangle
mesurement-of-the-angles

If $360 is shared in the ratio 2:3, what is the smallest share?

asked Feb 19, 2014 in PRE-ALGEBRA by johnkelly Apprentice

ratio-and-proportion

what is [fog](x) if f(x)= 2x +7 and g(x)= -3x+4.

asked Mar 14, 2014 in ALGEBRA 1 by payton Apprentice

evaluating-functions
composition-of-functions
functions

Copyright © 2024 MATHSKEY. All Rights Reserved. Sitemap|Terms Of Use|Disclaimer|Contact Us|FAQ

...