psychocatgirl1
17.12.2019 •
Mathematics
Lily worked 3 hours more than andrea. together they worked a total of 16 hours. andrea worked a hours. which equation represents this situation?
a. a+3=16
b. a+6=16
c. a+(a-3)=16
d. a+(a+3)=16
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Ответ:
The times were Lily 9.5 hours and Andrea 6.5 hours.
Equation "D" is correct using those numbers.
Step-by-step explanation:
Ответ:
5b - 5 + 10, when b = 5.
(5×5) - 5 + 10
= 25 - 5 + 10
= 20 + 10
= 30