Respuesta :
Answer:
an needs to walk dogs for at least 9 hours in order to earn more than $520 a week.
Step-by-step explanation:
Since his car wash attendant job pays $400 a week then you can subtract that from your final revenue.
$520-$400=$120
Now, to find out how many hours he has to walk dogs for in order to earn more than $520, you need to know some basic multiplication so...
$15×8=$120
...but he needs to earn MORE than $520 so...
$15×9=$135
$400+$135=$535.
Answer:
answer for plato
Step-by-step explanation:
520∠400+15x
15x⊃120
15x+400⊃520
explanation
Explanation:
Write Dan’s earnings as an expression. Since he wants to know how many hours he needs to walk dogs, let this quantity be x:
15x + 400.
Dan wants to earn more than $520 in a week, so this expression is greater than 520:
15x + 400 > 520.
If 400 is subtracted from 520, the result is true:
15x > 120.
Also, the first inequality can be rearranged:
520 < 400 + 15x.
