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Kisachek [45]
3 years ago
12

on a drawing, the height of a school block is 4cm. Given that the actual heigh of the block is 30m, find the scale of the drawin

g, expressing your answer in the form of 1cm to n m, where n is a real number
Mathematics
1 answer:
Aloiza [94]3 years ago
3 0

Answer:

1 cm to 7.5 m

Step-by-step explanation:

A drawing scale is a ratio of two numbers.

The given scale, 4 cm to 30 m, can be written as a ratio in the form of a fraction,

(4 cm)/(30 m)

Since it can be written as a fraction, it can also be reduced like a fraction.

The problem wants the number of cm to be 1 cm. We have 4 cm.

Divide the numerator and denominator by 4.

(1 cm)/(7.5 m)

Now write it in the format the problem asks.

1 cm to 7.5 m

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Jalen inherited a collection of vintage comic books. An appraiser separated the comic
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Step-by-step explanation:

Given,

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According to given statement;

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Putting value of x from Eqn 2 in Eqn 1

45(y+33)+65y=3135\\45y+1485+65y=3135\\110y=3135-1485\\110y=1650\\

Dividing both sides by 110

\frac{110y}{110}=\frac{1650}{110}\\y=15

Putting y=15 in Eqn 2

x=15+33\\x=48

Total comic books = x+y

Total comic books = 48+15 = 63

Jalen has total 63 comic books.

Keywords: addition, elimination method

Learn more about elimination method at:

  • brainly.com/question/10879401
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#LearnwithBrainly

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