Question

Rick ans Chad are playing a number pattern game. Rick wrote the pattern.

32.3, 34.5, 36.7, _, 41.1 What is the unknown number in the pattern Rick wrote? A) 37.9 B) 38.8 C)38.9 D) 39.9 what is the answer

Answer 1

Explanation:

38.9

Answer 2

Find the rate of change between terms to see if it is linear, a higher order, or exponential sequence...

34.5-32.3=2.2, 36.7-34.5=2.2, (41.1-36.7)/2=2.2

So this is a linear sequence with a common difference, or constant velocity, of 2.2. The first term is 32.3 and the rate is 2.2 so the linear equation is:

y=32.3+2.2(x-1) or more neatly

y=2.2x+30.1 so the fourth term is:

y(4)=2.2(4)+30.1

y(4)=38.9