joebossmc2184
01.12.2019 •
Mathematics
Fiona and her dad love making paper airplanes. on saturday morning, fiona made 12 paper airplanes, and her dad made 8 paper airplanes. that afternoon, they made more planes, which doubled their number of planes from the morning. at the end of the day, fiona her little brother make 3more paper airplanes. write a numerical expression with parentheses for the total number of paper airplanes fiona and her family made. do not simplify your expression.
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Ответ:
2(12+8) +3
Step-by-step explanation: In the morning they made 12 + 8 airplanes = (12 + 8)
In the afternoon they doubled the number that they made in the morning = 2 (12 + 8)
Finally, you would add 3 to this for the ones that her brother made = 2 (12 + 8) + 3
Ответ: