A group of friends are going to a cottage for the weekend and you look at the road map to see where it is. The scale used is 1 :
2 answers:
For this problem, we can put the scales and measurements into fractions along with a variable. We have 
.
From here, we can easily cross-multiply.
Our answer is 2,125,000 km.
From here, we can easily cross-multiply.
Our answer is 2,125,000 km.
Answer:
21.25 km
Step-by-step explanation:
Hello
The numerical scales (E), are also known as scale reasons, the relationship with the size of the map, or a part of it, with its actual size on the ground. Thus, an E of 1: 10,000 means that one unit on the map is equivalent to 10,000 units on the ground.
in the problem we have E=1:250000
which means that one centimeter on the map equals 250000 cm in ground
1 cm (map)⇒250000 cm (ground)
using a rule of three
1 cm (map)⇒250000 cm (ground)
8.5 cm (map) =x cm ( ground)
converting that distance to km
100 cm=1m
1000m=1 km
so
x=21.25 km
have a great day.
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Using the given information and what we know about linear equations, we will find the sketch below.
<h3>How to sketch a graph?</h3>Here we need to analyze each part separately.
In a coordinate axis where the y-axis represents distance and the x-axis represents time, we will have that:
First, we know that he rides for 30 minutes at a given speed, this will be represented with an increasing linear function.
Then he stops for 20 minutes, this is represented with a horizontal line.
Finally, he returns the motion, but slower than before, so the slope of this line will be smaller than the first one.
So for 0 to 30 we have an increasing linear equation, then for 30 to 50 we have a constant horizontal line, then for 50 to 80 we have another increasing linear equation
The sketch can be seen below.
If you want to learn more about linear equations, you can read:
