Find (1) If $$ 31 imes 25=775 $$, then $$ 0.31 imes 2.5=\ldots \ldots $$ (2) Fifth of $$ 15=\ldots \ldots \ldots . $$.

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Find (1) If $$ 31 	imes 25=775 $$, then $$ 0.31 	imes 2.5=\ldots \ldots $$ (2) Fifth of $$ 15=\ldots \ldots \ldots . $$.

UpStudy AI · Accepted Answer

1. لإيجاد $$0.31 \times 2.5$$:
   
   - نعلم أنه $$31 \times 25 = 775$$.
   - إذن يمكن اعتبار $$0.31 = \frac{31}{100}$$ و$$2.5 = \frac{25}{10}$$.
   - بالتالي:
     
     $$
     0.31 \times 2.5 = \frac{31}{100} \times \frac{25}{10} = \frac{31 \times 25}{1000} = \frac{775}{1000} = 0.775
     $$
     
2. لحساب "خامس $$15$$":
   
   - يعني ذلك إجراء القسمة:
     
     $$
     \frac{15}{5} = 3
     $$
     
الإجابات:
   
1. $$0.31 \times 2.5=0.775$$
   
2. خامس $$15=3$$
1. $$0.31 \times 2.5 = 0.775$$ 2. خامس 15 = 3

Find (1) If \( 31 \times 25=775 \), then \( 0.31 \times 2.5=\ldots \ldots \) (2) Fifth of \( 15=\ldots \ldots \ldots . \).

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