When is 9+10 really equal to 21
2 answers:
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
It can never be equal to 21 because that’s not how math works
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Answer:
Formulate
Based on the given conditions, formulate:

Evaluate
Evaluate the equation/expression:
20.78461
SO THE ANSWER IS 20.78461