j ÷ 3one-half for j = nine-tenths
A. 4one-fifth
B. 3three-tenths
C. nine-thirty-fifths
To solve this equation, we can substitute j with nine-tenths:
j ÷ 3one-half = nine-tenths ÷ 3one-half
Next, we need to convert the fraction 3one-half to a decimal:
3one-half = 3.5
Now we can rewrite the equation as:
nine-tenths ÷ 3.5
To simplify this division, we can multiply both the numerator and denominator by 10:
(9/10) ÷ 3.5 = (9/10) x (1/3.5) = 0.2571...
Rounding the answer to the nearest tenth, we get:
0.3
Therefore, the answer is B. 3three-tenths.