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Vika [28.1K]
3 years ago
10

What quantity of a 50% acid solution must be mixed with a 20% solution to produce 600 mL of a 45% solution?

Mathematics
1 answer:
Naddika [18.5K]3 years ago
4 0

Answer:

400 mL

Step-by-step explanation:

0.50x + 0.20(600-x) = 0.40*600

50x + 20*600 - 20x = 40*600

30x = 20*600

x = 20*20

x = 400 mL

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Answer:

Step-by-step explanation:

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3 years ago
Find the area of a trapezium whose parallel sides are 28.7 cm and 22.3 cm and distance between parallel sides is 16 cm.
puteri [66]

Given:

The parallel sides of a trapezium are 28.7 cm and 22.3 cm.

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3 years ago
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