Question

observe the pattern and fill in the blanks 1=1×2/2 1+2= 2×3/2 1+2+3=3×4/2 a.1+2+3+4=_________×5/2 b.1+2+3+4+5=__________×6/2​

Answer 1

Answer:

a. 4

b. 5

Step-by-step explanation:

a. 1+2+3+4 = x5/2

10 = x 5/2

x = 10×2/5 = 2×2 = 4

b. 1+2+3+4+5 = x6/3

15 = 3x

x = 15/3 = 5

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