Question

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Answer 1

The answer is down below.

Answer 2

Answer:

$y=1.44$

General Formulas and Concepts:

Pre-Algebra

• Order of Operations: BPEMDAS
• Equality Properties

Step-by-step explanation:

Step 1: Define

$\frac{4.5}{y} =\frac{12.5}{4}$

Step 2: Solve for y

1. Cross-multiply:                    $4(4.5) = 12.5y$
2. Multiply:                               $18 = 12.5y$
3. Isolate y:                              $1.44 = y$
4. Rewrite:                               $y=1.44$

Step 3: Check

Plug in y to verify it's a solution.

1. Substitute:                    $\frac{4.5}{1.44} =\frac{12.5}{4}$
2. Divide:                          $3.125=3.125$

Here, we see that 3.125 does indeed equal 3.125. ∴ y = 1.44 is a solution of the equation.