Answer:
105 km
Step-by-step explanation:
so, 1 cm on the map is 7 km in real life.
15 cm is 15 times 1 cm
so, the real life distance is 15×7 = 105 km
First let's define variables:
r: reading
s: skimming
We write the system of equations that adapts to the problem:
r + s = 275
(15/10) r + (10/15) s = 355
We solve the system of equations:
r = 206
s = 69
Note: see attached image for system solution.
Answer:
Jayden had to skim 69 pages through
Try to find the common factor which is 2.
So:
Multiply by 2 both variables in parenthesis and you get:
2*(l+w)
This is what the graph of in(x) looks like