t = 30a + 150 .
' t ' is the total cost of treatment.
' a ' is the number of appointments.
The $150 is paid only once.
I hope Pedro gets better fast. Poor little guy.
______________________________________
Oh, I see.
Now you're saying that she pays the $150 at every appointment.
So the equation is actually
<span>t = 180a</span>
Answer:
27
Step-by-step explanation:
Let x represent the number of $0.15 stamps Ivan bought. Then the value of his stamps is ...
0.15x +0.40(35-x) = 7.25
-0.25x +14.00 = 7.25 . . . . . eliminate parentheses, collect terms
-0.25x = -6.75 . . . . . . . . . . . subtract 14.00
x = 27 . . . . . . . . . . . . . . . . . . divide by -0.25
Ivan bought 27 $0.15 stamps.
Answer:
11 2/3
Step-by-step explanation:
2 1/3 * 5
Change the mixed number to an improper fraction
2 /13 = ( 3*2+1)/3 = 7/3
7/3 * 5/1
35/3
Now change it back to a mixed number
3 goes back into 35 11 times with 2 left over
11 2/3
Answer:
D) 560 ways
Step-by-step explanation:
Use the combinations formula: nCr = n! / (r! * (n-r)!)
16 choose 3 = 16! / (3! * 13!)
take out 13! in the numerator and denominator:
(16 * 15 * 14) / 6 = 560
hope this helps! <3
