Answer:
34 + 8n
Step-by-step explanation:
a₁ = 42
a₂ = a₁ + 8 = 42 + 8 = 50
a₃ = a₂ + 8 = 50 + 8 = 58
a₄ = a₃ + 8 = 58 + 8 = 66
Arithmetic sequence: 42, 50 , 58 , 66, ......
a₁ = 42 ; d = 8
= a₁ + d(n-1)
= 42 + 8(n - 1)
= 42 + 8n - 8
= 34 + 8n
if it takes 42 strokes to fill up 3/5 of line of typing , how many more strokes will it take to complete the line?
1 answer:
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Step-by-step explanation:
Step 1:
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We take the ratio of the same sides of both polygons i.e. the ratio of the lengths or the ratio of the widths.
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units.