Edgar said 3/5 is equivalent to 18/32. Check his work by making a
table of equivalent ratios.

In a nutshell, is not equivalent to .

Step-by-step explanation:

Now we proceed to demonstrate that Edgar's statement is false:

1) Given

2) Modulative property/Existence of multiplicative inverse

3)

4) Modulative property/Existence of multiplicative inverse

5) /Result

In a nutshell, is not equivalent to .

step-by-step explanation:

a rhombus is a parallelogram enjoying his symmetry.

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.