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barxatty [35]
3 years ago
12

Fractions. answer the question EXPLAIN.

Mathematics
1 answer:
goblinko [34]3 years ago
5 0
Here is the answer to the problem with working out

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The scale factor for a model is 5cm= m model: 9.5cm actual : 30.5m
MaRussiya [10]

We are given dimensions of model and actual figure.

model: 9.5cm actual : 30.5m.

We need to find the length of actual shape for the scale factor 5cm.

Let us assume actual length be x m.

Let us set a proportion now.

<h3>5 : x = 9.5 : 30.5</h3>

Let us convert proportion into fractions.

\frac{5}{x}=\frac{9.5}{30.5}

On cross multiplying, we get

9.5x = 5× 30.5

9.5x = 152.5.

On dividing both sides by 9.5, we get

\frac{9.5x}{9.5}=\frac{152.5}{9.5}

x=16.05.

<h3>Therefore, the scale factor for a model is 5cm= 16.05 m.</h3>

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3 years ago
How can you quickly calculate 20 percent of any bill amount?
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The answer is C an example is 20% of $20 is 4, so you would lose the zero and double the 2 to get 4

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PSYCHO15rus [73]

Answer:

139.71

Step-by-step explanation:

22% of 179.11 is 39.40

179.11 - 39.40 = 139.71

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If you have 8 batteries cost $40 [cost per battery]
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the answer is 5 because 40 divided by 8 is 5

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