I need to know what is 4/7=2x/5?

Question

Need a little help with my algebra =)

Answer 1

x = 10/7

How?

5(4/7) = 2x

20/7 = 2x

x = 10/7

Answer 2

Cross multiply and you get 4*5 = 2x*14 or 20 = 14x.  Divide by fourteen and you get:

x = 10/7 or about 1.43

Answer 3

4/7 = 2x/5

You need to isolate the variable, which is x. To start, multiply by five on both sides.

5*4/7 = 2x

or

20/7 = 2x

Now you'll need to divide by two on both sides, right? That's the same as multiplying by 1/2.

20/14 = x

Simply the fraction.

Your answer is {10/7}

Answer 4

4/7 = 2x/5

2x = 5(4/7)

2x = 20/7

x = (20/7)/2

x = 10/7 or 1 3/7

Answer: x = 10/7 or 1 3/7

Proof:

4/7 = (2[10/7])/5

4/7 = (20/7)/5

4/7 = 4/7

Answer 5

http://www.algebrahelp.com/calculators/

Answer 6

this is a porportion, cross multiply

4       2X

_   =  ___

7        5

multiply the diagonals

2X   *   7    =    4   *   5

14X   =   20

divide by 14

X   =   1.4285   or 10 / 7  or  1   3 / 7