900 students attend Ridgewood Junior High School. 5% of students bring their lunch to school everyday. How many students brought
1 answer:
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Step-by-step explanation:
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Answer:
Third number is 12
Step-by-step explanation:
Let be common difference &
be the third number. Set up the following equations:
Solve the simultaneous equation for x-term:
Let’s make sure that we get accurately answer. Substitute x = 12 in any equations which I’ll choose (1):
Now add each terms with common difference as 7:
-2+7 = 5
5+7 = 12
12+7 = 19
19+7 = 26
So our pattern is -2, <u>5</u>, <u>12</u>, <u>19</u>, 26. Since the question only asks for third number then the answer is 12