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defon
3 years ago
12

Please help me with this..

Mathematics
1 answer:
AleksandrR [38]3 years ago
6 0

Answer:

f = 1

Step-by-step explanation:

Use the method of cross- multiplication

\frac{a}{b} = \frac{c}{d} ⇒ ad = bc, thus

20f = 5(f + 3) ← distribute

20f = 5f + 15 ( subtract 5f from both sides )

15f = 15 ( divide both sides by 15 )

f = 1

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Answer:

The second 4 wheeler gets better mileage

Step-by-step explanation:

First 4 wheeler:

52mi -  5gal

Second 4 wheeler:

21mi - 2 gal

To compare we have to make sure everything is equal so,

5÷2 = 2.5

so,

second 4 wheeler:

21*2.5=52.5 , 2*2.5=5

52.5mi - 5gal

52<52.5

6 0
2 years ago
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A model plane is 1/48 the size of an actual plane. If the model plane is 28 inches long, how long is the actual plane?
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6 0
3 years ago
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Brrunno [24]

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Step-by-step explanation:

Given,

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Rounding off to nearest hundredth

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The amount of bill is $43.15

Keywords: subtraction, multiplication

Learn more about subtraction at:

  • brainly.com/question/11175936
  • brainly.com/question/11203617

#LearnwithBrainly

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