These cannot be solved.- 3 unknowns require 3 equations
Answer:
alllllllll
Step-by-step explanation:
175 red squares out of 1000 squares = 175/1000 = 0.175 of the design is red.
Answer:
Step-by-step explanation:
This problem can be solved using the pythagorian theoreme:
Where:
We isolate our incognita an we get:
We supplant with the given data:
Answer:
<h2>B. The amount of fuel used was lowest at speeds around 60km/h.</h2>
Step-by-step explanation:
The decreasing part is from (20,13) to (60,6), which gives an average rate of
Then, we have an increasing part from (60,6) to (120,10), which gives an average rate of
Basically, at 60 km/h the fuel used was 6 liters per 100 kilometers. Notice that the other velocities make the car to use more liters per kilometers.
Therefore, the amount of fuel used was lowest at speeds around 60 km/h.