Solve. Please show all of your work. If Barbara received a 4 percent raise and i
ID: 3103665 • Letter: S
Question
Solve. Please show all of your work.If Barbara received a 4 percent raise and is now making $41,200 per year, what was her salary before the raise? Round your answer to the nearest dollar.
Solve. Please show all of your work.
The sum of twice a number and 4 less than the number is the same as the difference between -32 and the number. What is the number?
Solve. Please show the algebraic inequality you used and show all of your work.
Two cell phone companies are advertising rates. Company A charges a rate of $20 per month plus $0.05 per minute. Company B charges a rate of $10 per month plus $0.10 per minute. What is the number of minutes used above which Company A costs more than Company B?
Explanation / Answer
then if her answer before raise is X after raise it's X(0.4)=41200 then X=41200/0.4=103000 2x+(x-4)= -32-x then bring all x together 4x=-32+4=-28 then x= -7 A: 20+0.05t B: 10+0.1t then we say 20+0.05t>10+0.1t and solve for t 20-10>0.1t-0.05t 10>0.05t divide by 0.05 200>t but after that if you try out numbers from 1 to even larger than 100 then you'll find that A is always more costy than b so for more than 0 minutes A costs more Hope I helped :)