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Daniel [21]
3 years ago
14

PLZZZ HELP ME OUT........................ PLZZ​

Mathematics
2 answers:
aliina [53]3 years ago
8 0

Answer:

a)  constant of proportionality is 3/5

b)  3.5cm per 1 minute

c)  21 cm water in trough after 6 min

d)  70 cm

Step-by-step explanation:

d)  21 / 6 = x / 20

    7 / 3 = x / 20    

    2x = 140

    x = 70

GREYUIT [131]3 years ago
6 0
It would be D 20 minutes water levels
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