Given: p>0, n<0 Assuming that p and n are real numbers p+p>0 n+n<0 p+n>0 for |p|>|n| and <0 for |n|>|p| n+p>0 for |p|>|n| and <0 for |n|>|p| p-p=0 n-n=0 p-n>0 (because n is negative to start with) n-p...
Given: p>0, n<0 Assuming that p and n are real numbers p+p>0 n+n<0 p+n>0 for |p|>|n| and <0 for |n|>|p| n+p>0 for |p|>|n| and <0 for |n|>|p| p-p=0 n-n=0 p-n>0 (because n is negative to start with) n-p...
Follow the order of operations: PEMDAS: Paratheses, Exponents, Multiplication, Division, Addition, Subtraction An easy way to remember this is to go by the first letter of each word in the well known phrase: "Please Excuse Me Dear Aunt Sally"! [75 divided 5(4 minus 1)]x9 can be written as: [75/5*(4-1)]*9 Following...
Mark's weight = 74 lb. Mark's sister's weight = w lb. Since Mark and his sister together weigh 6lb. more than thrice the weight of Mark's sister alone, we can write: 74+w = 6+3w To solve this equation for w, first add -w to both sides of the equation. 74+w-w=6+3w-w or, 74 = 6+2w Now add -6 to both...
Given equation: x+2/4+3/x-1=7 LHS: Left hand side RHS: Right hand side Let us begin by rewriting the given equation more clearly: (x+2)/4 + 3/(x-1) =7 Remember: Equation does not change in value if the same operation is performed on the LHS and RHS of the equality sign. Step 1: Multiply LHS and...