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Karo-lina-s [1.5K]

3 years ago

10

Can someone explain this to me how 7.5-3.7=3.8?

1 answer:

goldfiish [28.3K]3 years ago

6 0

Hello!

When you subtract these numbers, you always first subtract the numbers in the smallest place value. In this case, that would be the .5 and .7. However, since you cannot subtract 7 from 5 without getting a negative number, borrow a one from the place value that is one greater.

Thus, you get:

15 - 7 = 8

Therefore, we know that the ._ digit of our result is .8.

Now, moving on to the next smallest place value (in this case the largest).

You would subtract 7 - 3, however remember earlier that we borrowed a one. When you borrow a one, you must subtract one from the number that it was borrowed from. Therefore, the equation would become 6 - 3.

6 - 3 = 3

Therefore, the ones digit of our result is 3.

Put these two together, and you get your result of 3.8.

Hope this helps!

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Option D

The prime factorization of 50 is $2 \times 5^2$

<em><u>Solution:</u></em>

Given that, we have to find prime factorization of 50

The prime factorization is any of the prime numbers that can be multiplied to give the original number

<em><u>Prime Factorization of 50</u></em>

Step 1: Start by dividing the number by the first prime number 2 and continue dividing by 2 until you get a decimal or remainder

$50 \div 2 = 25$

Then divide by 3, 5, 7, etc. until the only numbers left are prime numbers

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In exponential form,

$\text{Prime factorization of 50 } = 2 \times 5^2$

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