9w - 7 = 5
9w= 5+7
9w=12
w= 4/3 or 1.33
Answer:
about 9.4 units
Step-by-step explanation:
Distance formula:
√(x1 - x2)² + (y2 - y1)²
Coordinates:
A (4, 2)
B (9, 10)
Let's make 9 = x1
Let's make 4 = x2
Let's make 10 = y1
Let's make 2 = y2
Substitute into the distance formula:
√(x1 - x2)² + (y2 - y1)²
√(9 - 4)² + (2 - 10)²
Solve:
√(9 - 4)² + (2 - 10)²
√(5)² + (-8)²
√25 + 64
√89
≈ 9.4
Therefore, the length of AB is approximately 9.4 units.
This question is basically a ratio 1 : 42
so then it would be 2 : 84 then 3 : 126
So your answer is D 3 Gallons for 126 miles.
Measure the lengths of the runways in inches and then times your answer by 700 and then round that answer.