Answer:
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Step-by-step explanation:
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Work Shown:
4 quarts = 1 gallon
1 quart = 0.25 gallons (divide both sides by 4)
6 quarts = 1.5 gallons (multiply both sides by 6)
1 gallon + 6 quarts = 1 gallon + 1.5 gallons = 2.5 gallons
1 gallon = 16 cups
2.5 gallons = 40 cups (multiply both sides by 2.5)
x+2a-b=5x+5a-2*3a+2*b
x+2a-b=5x+5a-6a+2b
x+2a-b=5x-a+2b
5x-x=2a-b+a-2b
4x=3a-3b
4 x=3(a-b)
x=3/4(a-b)
Change in altitude:
42,000 - 18,000 = 24,000 feet
Rate of change = 24,000 feet / 12 minutes = 2,000 feet per minute
Because the plane was going down, the rate of change would be negative.
The rate would be -2,000 feet per minute.
<H = 38
Answer:3