Answer: 1.83
Step-by-step explanation:
Hope this helps!
0.4 gallons * 4.2 hours = 1.68 gallons
Gabriel uses 1.68 gallons in 4.2 hours.
Answer:
20% alcohol = 1 gal
10% alcohol = 9 gal
Step-by-step explanation:
Let
x = 20% alcohol
y = 10% alcohol
x + y = 10 (1)
0.20x + 0.10y = 10*0.11
0.20x + 0.10y = 1.1 (2)
From (1)
x = 10 - y
Substitute x = 10 - y into (2)
0.20x + 0.10y = 1.1
0.20(10 - y) + 0.10y = 1.1
2 - 0.20y + 0.10y = 1.1
- 0.20y + 0.10y = 1.1 - 2
-0.10y = -0.9
y = -0.9/-0.10
y = 9 gal
substitute y = 9 into (1)
x + y = 10
x + 9 = 10
x = 10 - 9
x = 1 gal
20% alcohol = 1 gal
10% alcohol = 9 gal
Answer:
Step-by-step explanation:
Find the next three terms: 9,4,-,1,-6,-11,<u>-16....</u>
This is arithmetic progression.
d = 4 - 9 = -5
-11 - 5 = -16
2) You know that........
The other integer is greater than 5 and the sign of the other number is + (positive sign)
Eg: (-5)+ 11 = 6
3) Cost of one gallon = 46.20/12 = $ 3.85
