The decimal form of 1/5+1/25+1/125 is ____ A)0.155 B)0.284 C)0.248 D)0.428

esterificslo1

esterificslo1

Answered question

2023-02-24

The decimal form of 1/5+1/25+1/125 is ____
A)0.155
B)0.284
C)0.248
D)0.428

Answer & Explanation

Hayden Drake

Hayden Drake

Beginner2023-02-25Added 6 answers

The right decision is B 0.248
We have operation is 1 5 + 1 25 + 1 125
Using the denominators as factors,
1 5 + 1 25 + 1 125 = 1 5 + 1 5 2 + 1 5 3
To change a fraction into decimal form, make the denominator in terms of multiples of 10.
( 1 5 × 2 2 ) + ( 1 5 2 × 2 2 2 2 ) + ( 1 5 3 × 2 3 2 3 )
= 2 10 + 4 100 + 8 1000
= 0.248

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