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Illusion [34]
3 years ago
7

Can someone help me I suck at math

Mathematics
1 answer:
yawa3891 [41]3 years ago
7 0

Answer:

0.7 kg

Step-by-step explanation:

x = mass of the empty container (just the container alone)

y = mass of the sand in the full container.

x + y = 1.26 kg

x + 5/8 × y = 1.05 kg

=>

x = 1.26 - y

(1.26 - y) + 5y/8 = 1.05

8×(1.26 -y) + 5y = 8×1.05

8×1.26 - 8y + 5y = 8×1.05

10.08 - 3y = 8.4

3y = 1.68

y = 0.56 kg

x = 1.26 - 0.56 = 0.7 kg

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