. The scale on a map is 1 cm : 4 km. If two cities are 16 cm apart on the map, what is the actual distance between the cities?

2 answers:

3 0

the scale is 1 : 4 , so for every 1 cm there is 4 km

So you take 16 cm and multiply it by 4

So the Answer is 64 cm

Zigmanuir [339]3 years ago

3 0

Answer:

64 kilometers between the cities.

Step-by-step explanation:

To calculate this you just have to do a rule of three between the rate of 1cm: 4 kilometers, with the distance of the 16 centimeters that they are apart in the map with the next equation:

$\frac{1cm}{4km}= \frac{16cm}{x}\\ x=\frac{4km*16cm}{1cm}\\ x=\frac{64km*cm}{1cm}\\ x=64 km$

So the answer is that the cities will be 64 kilometers apart from one another in reality.

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(-19+7i)-(29+32i)= in the form (a+bi)

olga_2 [115]

ANSWER

$-48-25i$

EXPLANATION

We want to simplify the expression,

$(-19+7i) - (29+32i)$

Let us expand the bracket to obtain,

$-19+7i-29-32i$

We now group the complex number parts and real number parts.

$-19 -29+7i-32i$

We simplify further to obtain,

$- 48-25i$

This is in the form,

$a+bi$

where

$a=-48$

and

$b=-25$

5 0

2 years ago

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blondinia [14]

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