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snow_tiger [21]
3 years ago
7

What percent of 42 is 30? In proper fraction

Mathematics
2 answers:
11Alexandr11 [23.1K]3 years ago
8 0

Answer:

71.42%

Step-by-step explanation:

lets use the formula \frac{is}{of} =\frac{x}{100}

is=30

of=42

x=percent

so

\frac{30}{42}= \frac{x}{100}

cross multiply:

30*100=42x

3000=42x

71.42

Hope tis helps

olga55 [171]3 years ago
6 0
The answer is 500/7
Hope this helps

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zvonat [6]

Mitra used 156 white tiles of 2x2 cm and 76 black tiles of 2x3 cm to form a pattern with an area of 1092 cm²

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Let x represent the number of white tiles and y represent the number of black tiles.

Area of white tiles = 2 cm * 2 cm = 4 cm²

Area of black tiles = 2 cm * 3 cm = 6 cm²

She used twice as many white tiles as black tiles. Hence:

x = 2y   (1)

Also, the finished pattern was 1092 square centimeters in area. Hence:

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From both equations:

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2 years ago
Please answer with proof/work I give points
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Answer:

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Step-by-step explanation:

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What is the ratio of red sections to total sections, in lowest terms?
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Hello there! Your answer would be 1/4.

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