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vladimir1956 [14]
3 years ago
6

The actual length of Wall C is 4 m. To represent Wall C, Noah draws a segment 16 cm long. What scale is he using?

Mathematics
1 answer:
hjlf3 years ago
4 0

Answer:

\frac{1m}{4cm}

Step-by-step explanation:

First write the problem out as a fraction.

\frac{4}{16}

Next see if there is a GCF

4:1,2,4

16:1,2,4,8,16

Finally divide the numerator and denomenator by the GCF

\frac{4}{16} /4=\frac{1}{4}

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inysia [295]

Answer:

A. (1.55, 2)

Step-by-step explanation:

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Given;

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3 0
3 years ago
A scientist need 10 L of a 20% acid solution for an experiment where she had only a 5% solution and a 40% solution to the neares
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Answer:

Amount of 5% solution = 5.7 Litres

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Step-by-step explanation:

First, of all, let x be the amount of 5% solution used

Since, the scientist needs 10 L of solution, then;

Let 10 - x be the amount of 40% solution used

Now, we are told that she needs 10 L of a 20% acid solution.

This means that;

5%x + 40%(10 - x) = 20%(10).

Simplifying this gives;

0.05x + 0.40(10 - x) = 0.20 × 10

Expanding the bracket gives;

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Step-by-step explanation:

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