Answer:
5h ≤ 20 or h ≤ 4
Step-by-step explanation:
Lia walks at a rate of 5 miles per hour.
Lia has a goal of walking at least 20 miles
Let h be the number of hours she should walk in order to meet or exceed her goal.
At least in inequality means ≤. ATQ,
5h ≤ 20
Dividing both sides by 5.
h ≤ 4
So, she should walk atleast 4 hours. Hence, the correct option is (b).
Answer:
Part a)
Part b)
Step-by-step explanation:
Part a) Set up a proportion to show the relationship between the distance in miles and the size of the map
we know that
The scale on a map is equal to
That means
1 inch on a map represent a 15 miles in real life
Part b) How far apart are the cities in real life?
Let
x -----> the distance in real life
using proportion
The answer is (A) which is 32..
If u can f(x) =160 when x=40 and if we divide 160 by 40 we get 4..
Therefore we can say that to get the f(x) we have to multiple the value of x by 4.
. *NB: as the value of x=40, f(x) is: 40×4=160
. * Therefore as the value of x=8, f(x) is: 8×4=32
Answer:
44 hours
Step-by-step explanation:
If you set up a proportion 10/125= x/550. Then you cross multiply and get 125x=5500 and divide by 125. Now you have x=44