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Ahat [919]
3 years ago
14

On a blueprint, the scale says that 2 cm represents 3 m. What is the actual length of a wall if its measurement on the blueprint

is 7 cm?
Mathematics
2 answers:
VashaNatasha [74]3 years ago
7 0

Answer:

10.5 metres

Step-by-step explanation:

2 cm is equal to 3m

1 cm is equal to 1.5 m

7 cm is equal to 1.5 x 7 m which is 10.5 metres.

Leokris [45]3 years ago
4 0

Answer:

The actual length of the wall is 10.5 m

Step-by-step explanation:

Write and solve an equation of ratios to answer this question:

2 cm       3 m

--------- = ---------

7 cm         L

Solve this for L by inverting both sides:  

 7cm          L

---------- = --------

  2 cm      3 m

and then multiplying both sides by 3m:

21

----- = L

 2

The actual length of the wall is 10.5 m

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Answer:

Step-by-step explanation:

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  • Not Green:  \frac{80}{100}.... since the sum of all the rest is 80%
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Assuming the <u><em>ratios/percentages</em></u> of the candies stay the same having an infinite amount of candy will not affect the probabilities. That being said in order to calculate consecutive probability of getting 3 of a certain type in a row we have to multiply the probabilities together. This is calculated by multiplying the numerators with numerators and denominators with denominators.

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\frac{15*85*15}{100*100*100} = \frac{19,125}{1,000,000} = \frac{1.9125}{100}

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