3.9 point is equivalent to how many tenths?
10 is in 3, so that's 30. There's another 9.30 + 9 = 39.39 tenths.
Answer with explanation:
3.9= 3 ones + 9 Tenths
1 ones =10 Tenths
3 ones =3 × 10 Tenths=30 Tenths
3.9=30 Tenths +9 Tenths
=39 Tenths
So, 39 Tenth
\(=\frac{39}{10}\\\\=3.9\)