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14.11.2020 •
Mathematics
How can 20 × 15 help you find 19 × 15?
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Ответ:
Step-by-step explanation:
You find the answer of 20 x 15 and subtract 15.
Ответ:
You find the answer of 20 x 15 and subtract 15.
Step-by-step explanation:
Ответ:
-3
Step-by-step explanation:
Evaluate 2 x + 7 where x = -5:
2 x + 7 = 7 - 5×2
Hint: | Multiply 2 and -5 together.
2 (-5) = -10:
-10 + 7
Hint: | Subtract 10 from 7.
7 - 10 = -3:
-3