ANSWER
Find out the customer was the first to get both items
To proof
As given
During a promotional event
sporting goods store gave every 14th customer a free shirt and a free bottle to every 18th customer.
Least common factor of ( 14 , 18 )
L.C.M (14,18) = 2 ×7 ×9
= 126
Also as shown in the table given below
in the table
the common value in the shirt and bottle is 126.
i.e 126 th the customer was the first to get both items.
Hence proved
There will be 1.078x students next year and equation is number of students in next year = x + 7.8% of x
<h3><u>Solution:</u></h3>Given, There are "x" number of students at helms.
The number of students increases by 7.8% each year which means if there "x" number of students in present year, then the number of students in next year will be x + 7.8% of x
Number of students in next year = number of students in present year + increased number of students.
Thus there will be 1.078x students in next year