Answer:
8 weeks
Step-by-step explanation:
Given:
Earns $36 per week
Has $145 in bank account
How long till $433 is saved up
Work:
Since we are given that the total amount need is $433 we also have to take into account what he has. He already has $145, so we need to subtract this from $433:
$433 - $145 = $288
From here, we have the left over amount that he needs to save up by moving lawns. To solve for this we need to divide $145 by $36:
$145/$36 = 8
Another method:
Create a function:
y = 145 + 36x
- The y represents the total money that needs to be saved ($433)
- 145 represents the money he already has
- 36x represents the amount of money he makes per week
Now all we need to do is replace the y with the $433 and solve for x:
1) y = 145 + 36x → 433 = 145 + 36x
2) 433 - 145 = 36x
- (Because you want all the numbers without the x on one side, you want to subtract be cause the 145 is positive)
3) 288 = 36x → 288/36 = x
- (Because you want to solve for x, you do not want any numbers by it, so because you are technically multiplying 36 and x, you have to divide to get rid of the 36 from the right side)
4) 8 = x
I hope this helps!
