Simplify: 15÷5×7-3×2
Simplifying 15÷5×7-3×2:
We have to use BODMAS Rule in this question.
BODMAS stands for Brackets, Of, Division, Multiplication, Addition, Subtraction.
15÷5×7-3×2=3×7-3×2=21-6=15
Hence, the answer is 15
Look at the pattern and fill in the blanks:
4=3×1+1, For 1st term or n=1
7=3×2+1, For 2nd term or n=2
10=3×3+1, For 3rd term or n=3
13=3×4+1, For 4th term or n=4
16=3×5+1, For 5th term or n=5
∴Expression for nth term is 3n+1
(iii) For n=30, 3×____+1=____.