Question

Brandon needs $480 to buy a TV and stereo system for his room. He received $60 in cash for birthday presents. He plans to save $30 per week from his part-time job. Write an equation and solve to find how many weeks w it will take to have $480.

Answer 1

Answer:

14 weeks till he has $480

Step-by-step explanation:

He needs $480

He has $60

He has to earn the rest over the span of the next few weeks, which is $30 for an unknown number of weeks.

Let the unknown number be x in our equation

What he needs to buy the TV and Stereo system is $480 which is our total

The $60 dollars he received is a complete variable

hence we can say, 30x+60=480

This is our equation but it isn't simplified.

first, divide everything by 10(it is a common divisor)

3x+6=48

subtract 6 which is complete from the total

3x=42

Make x the subject and divide both sides by 3

x=14

so the unknown number of weeks is 14.