Mark has 4 times as many cars as dan together they haveb30 cats how many cars does mark have

Mark has 4 times as many cars as Dan together they have 30 cars. How many cars does Mark have?

Dan has X carss.

Mark has 4 times as many cars = 4X.

Together they have 30 cars/

30 = X + 4X = 5X

X = 30/5 = 6

Dan has 6 cars.

Mark has 4X = 4 x 6 = 24 cars.

Check: 6 + 24 = 30 cars.

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.