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SIZIF [17.4K]
3 years ago
14

I need someone to teach me how to solve this

Mathematics
1 answer:
abruzzese [7]3 years ago
6 0

Answer:

t + 40 = 90

Step-by-step explanation:

90 minutes volunteering

40 minutes delivering flowers

90 - 40 = number of minutes answering phone   (50 minutes)

so, t = 90 - 40    or  rearranged to t + 40 = 90

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