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AleksandrR [38]
3 years ago
12

The ratio of pencils to erasers is 4:1 if there are 20 pencils how many erasers are there?

Mathematics
1 answer:
Levart [38]3 years ago
7 0
It is 5 because you have to multiply by 5 by 4 and get 20 when you multiply by 5×1 and get 5
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\dfrac{7}{16} \ as \ a \ decimal = 0.4375


Set \ up \ the \ long \ division. 


Calculate \ 70 \div 16, \ which \ is \ 4  \ with \ a \ remainder \ of \ 6.&#10;&#10;


Bring \ down \ 0, so \ that \ 60 \ is \ large \ enough \ to \ be  \ divided \ by \ 16.&#10;&#10;


Calculate \ 60 \div 16, which \ is \ 3 \ with \ a  \ remainder \ of \ 12.&#10;&#10;


Bring \ down \ 0, so \ that \ 120 \ is \ large \ enough \ to \ be \ divided \ by \ 16.&#10;&#10;


Calculate \ 120 \div 16, which \ is \ 7 \ with \ a \ remainder \ of \ 8.&#10;&#10;


Bring \ down \ 0, so \ that \ 80 \ is \ large \ enough \ to \ be \ divided \ by \ 16.



Calculate \ 80 \div 16, which \ is \ 5. &#10;
<span>
</span>

Decimal = 0.4375&#10;

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