titokudaravalli titokudaravalli
  • 26-06-2021
  • Mathematics
contestada

when is 9+10 really equal to 21

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doomdabomb
doomdabomb doomdabomb
  • 26-06-2021

Answer:

9 + 10 = 21

Step-by-step explanation:

9 + 10 = 21

Factor out 9 and 10

9 = 3 · 3   10 = 2 · 5

Next multiply 3 by 2

3 × 2 = 6

Then multiply 3 by 5

3 · 5 = 15

Finally add the products

15 + 6 = 21

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lydiacavanaugh55 lydiacavanaugh55
  • 26-06-2021
It can never be equal to 21 because that’s not how math works
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