<u>Answer:</u>
1 cm : 10.5 km
<u>Step-by-step explanation:</u>
We are given that two towns are 31.5 km in real and are 3 cm apart on a map and we are to find the scale of the map.
For this, we can use the ratio method.
![\frac { 3 cm } { 1 c m } = \frac { 3 1 . 5 k m } { x }](https://tex.z-dn.net/?f=%20%5Cfrac%20%7B%203%20cm%20%7D%20%7B%201%20c%20m%20%7D%20%3D%20%5Cfrac%20%7B%203%201%20.%205%20k%20m%20%7D%20%7B%20x%20%7D%20)
![x = \frac { 3 1 . 5 \times 1 } { 3 }](https://tex.z-dn.net/?f=%20x%20%3D%20%5Cfrac%20%7B%203%201%20.%205%20%5Ctimes%201%20%7D%20%7B%203%20%7D%20)
![x = 1 0 . 5](https://tex.z-dn.net/?f=%20x%20%3D%201%200%20.%205%20)
Therefore, the scale of the map would be 1 cm : 10.5 km.
Answer:
1. Her time in minutes is 720/s minutes
2. Given her time to be 20 minutes, her speed is 36 mph
Step-by-step explanation:
Mathematically,
Distance = speed * time
In this question, we want to calculate time;
So time = distance/speed
times = 12 miles/s mph = 12/s hours
Now we want our answer in minutes
Kindly recall that 60 minutes = 1 hour
So 12/s hours will be 12/s * 60 = 720/s minutes
2. Since she drives from home to the office in in 20 minutes, we want to calculate her speed in mph
From the time calculated above i.e 720/s
We can equate 20 = 720/s
20s = 720
s = 720/20
s = 36 mph
It would be equal to 110 2/7
Answer:
x = 64
Step-by-step explanation:
looking at the other sides, you find that each side had just been doubled.