Question

Simplify the expression 10[4x10÷(6^2-4^2)+1] A. 210 B. 30 C. 201 D. 20

Answer 1

How to get answer by Mimiwhatsup:

$Follow\:the\:PEMDAS\:order\:of\:operations\\P: Parenthesis, E- Exponents, D-Division, M-Multiplication, A - Addition, S-Subtraction\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:10\cdot \:3\::\quad 30\\=30$

Answer 2

Your answer is B. 30. Here's why:

First, you do the parenthesis inside the parenthesis, which is 6 to the 2nd minus 4 to the 2nd. 6^2 is 36 and 4^2 is 16, and the difference is 20. Second we have 4x10÷20+1. With Order of Operations, you get 40÷20+1, then 2+1 and lastly 3. Finally after these parenthesis, you multiply by the 10 on the outside and your final answer, 30.