semaj bought a souvenir cup at the zoo for 8.50. any time semaj brings the cup back to the zoo he can purchase fountain drinks for 0.75 each. if semaj has spent 15.25vso far, including the orginal purchase of the cup, how many fountain drinks has he purchased

9

Step-by-step explanation:

15.25-8.50= 6.75, 6.75÷.75=9

9 fountain drinks

Step-by-step explanation:

8.50+0.75x=15.25 is the equation you will use. 8so is your starting point and for every drink you get, it is 75 cents.

Solve by subtracting 8.50 from 15.25

0.75x=6.75

Divide 6.75/0.75 to isolate the x.

x=9

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.