Answer: [tex]a=0.021[/tex]
Step-by-step explanation:
1. To solve the expresion given in the problem above you must apply the following proccedure:
- Convert mixed numbers to decimals. Divide the numerator and the denominator of the fraction part and add the result to the whole part:
[tex]2+\frac{1}{7}=2+0.14=2.14[/tex]
[tex]5+\frac{1}{4}=5+0.25=5.25[/tex]
- Rewrite the expression:
[tex]\frac{2.14}{15a}=\frac{5.25}{0.8}[/tex]
- Now, you can solve for [tex]a[/tex]:
[tex]0.14=6.56a\\a=\frac{0.14}{6.56}\\a=0.021[/tex]
