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3 years ago

If it takes a postal service person to deliver 18 pieces of mail in 15 minutes how many pieces of mail can he deliver in 1 hour

2 answers:

6 0

60(one hour) divided by 15 is 4. 4 tines 18 is 112. A postal service person can deliver 112 pieces in 1 hour. Hope this helps!

exis [7]3 years ago

3 0

This Problem has to be solved using Unitary Method.

Number of letters postman can deliver in 15 minutes= 18 letters

Number of letters postman can deliver in 1 minute=18/15

Number of letters postman can deliver in 1 hour= 18/15*60
= 72 Letters

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Step-by-step explanation:

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3 years ago

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natita [175]

Answer:

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2 years ago

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3 years ago

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Neko [114]

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2 years ago

Read 2 more answers

Let F be a field, and suppose a EF, a *0. Prove that a has a unique multiplicative inverse.

bezimeni [28]

Answer with Step-by-step explanation:

Let F be a field .Suppose $a\in F$ and $a\neq 0$

We have to prove that a has unique multiplicative inverse.

Suppose a has two inverses b and c

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$c=b$ (cancel a on both sides)

Hence, a has unique multiplicative inverse.

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3 years ago