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3 years ago

What is 13×379 please help me

Mathematics

1 answer:

Kisachek [45]3 years ago

6 0

Step-by-step answer:

Since the question can be solved easily with a calculator, it is assumed that no calculators are allowed.

13*379 is the same as (10+3)*379

Applying distributive law, we then solve

10*379 = 3790

3*379 = 1137

Adding the two, we get

4927

Alternatively, we can calculate the product by long multiplication to get also 4927.

To check for mistakes, we use casting out nines

13 * 379 (add the digits, 1+3, 3+7+9)

4 * 19 (add the digits)

4*10 (multiply)

40 (add digits)

Add digits of 4927

4+9+2+7 = 22

add digits again

2+2 =4

the two match, so the likelihood of make arithmetic error is very low.

Note: using a calculator, the value is indeed 4927.

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hello your question is incomplete attached below is the complete question

answer :

Daniels sister is not correct because the time that will be taken by Daniel will be greater than the initial total time taken by Daniel.

Step-by-step explanation:

First determine the time it will take Daniel to reach the Boat and the jogging time

time = distance / rate

where distance can be calculated using this equation: sin 53° = 400 / x

hence x ( distance ) = 500 ft

rate = 150

therefore Time ( t ) to reach boat = 500 / 150 = 3.33 minutes

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6 0

3 years ago

What is 13×379 please help me​

What is 13×379 please help me