Answer:
Step-by-step explanation:
Both parts of the ratio can be divided by 9
81/9 = 9
72/9 = 8
The ratio is 9:8
54/48 is also 9:8
54 / 6 = 9
48/6 = 8
The ratio is 9:8
63:56 is also an answer
63 / 7 = 9
56/7 = 8
The ratio is 9:8
The others don't work. You can just look at them to see why.
1 : 15 - scale
150 / 15 x 1 = 10
120 / 15 x 1 = 8
Dimensions of the drawings = 10 by 8
This is a function where:
x - time in minutes;
y = f ( x ) - altitude of a plane in feet.
Max altitude = 35,000 feet
0.5 h + 2 h + 15 min = 30 min + 120 min + 15 min = 165 min
Domain:
x ∈ [ 0; 165 ]
Range:
y ∈ [ 0; 35,000 ]
