Question

2.25(a+ 1.3) = 20.7
whats the value of a

Answer 1

To solve the equation \( 2.25(a + 1.3) = 20.7 \), follow these steps:

1. **Divide both sides by 2.25** to isolate the expression inside the parentheses:

\[
a + 1.3 = \frac{20.7}{2.25}
\]

2. **Calculate the right side**:

\[
\frac{20.7}{2.25} = 9.2
\]

Now the equation looks like this:

\[
a + 1.3 = 9.2
\]

3. **Subtract 1.3 from both sides** to solve for \( a \):

\[
a = 9.2 - 1.3
\]

4. **Calculate the value of \( a \)**:

\[
a = 7.9
\]

So, the value of \( a \) is \( \boxed{7.9} \).