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vovangra [49]
4 years ago
7

Need help 19 ×21=XX =​

Mathematics
1 answer:
goldenfox [79]4 years ago
5 0

Answer:

the answer is 399

Step-by-step explanation:

19 times 10 is 190. 19 times 10 again is 190. Add 190 together and you get 380. then, you add the final 19 and you get 399.

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Use the distributive property to express 15+45
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<u><em>Answer:</em></u>
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<u><em>Explanation:</em></u>
<u>The distributive property can be generally expressed as follows:</u>
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<u>The given expression is:</u>
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<u>We know that:</u>
15 = 1*15
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<u>Therefore, the given expression can be written as:</u>
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<u>Taking 15 as a common factor and applying the above rule, we will reach the following expression:</u>
15(1+3)

Hope this helps :)
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