Bobby wants to go on a school trip that will cost him $250. he comes up with an equation that represents how much he needs to save each week as follows: 25w+30=250, where w is the number of week spent saving.
if he has 9 weeks to save will you have enough money to go on the trip? explain.

Yes, Bobby will have enough money if he saves for 9 weeks. You can find this through either substituting w for 9 in the equation, or solving the equation itself. 

Substituting:


Substitute w for 9. 


Simplify. 


Solve. 

255 is greater than 250, so yes, he will have enough money saved. 

Solving the equation:


Original Equation


Subtract 30 from both sides. 


Divide both sides by 25. 

The number of weeks he needs is 8.8. When rounding it up, you get 9. 

Delta airlines or untied airlines

Idon’t have want a lot more