The answer to the equation 1/3(6x-15)= 1/2(10x-4) is D. -1
Answer:
12 gallons
Step-by-step explanation:
Total gallons = 16 gallons
Total distance = 460 miles
Fuel efficiency in the highway = 30 miles per gallon
Fuel efficiency in the city = 25 miles per gallon
Let
h = gallons of gasoline were used on the highway.
460 = 30h + 25(16 - h)
460 = 30h + 400 - 25h
460 - 400 = 30h - 25h
60 = 5h
h = 60/5
h = 12 gallons
12 gallons of gasoline were used on the highway.
Answer:
x=38
×= 90÷4( divide it to get the answer)
Answer: $112, 16 trips
Step-by-step explanation:
You would plug 9 into the equation for t. Then for the total amount until she was out of money you would divide 256 (her total amount of money) by 16 (the toll cost per trip)
Answer:
Solution: (-4,5)
Step-by-step explanation:
x=16-4y
3x+4y=8
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The 1st equation tells you x = 16-4y
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Substitute that into the 2nd equation
and solve for "y":
3(16-4y)+4y = 8
48 - 12y + 4y = 8
-8y = -40
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y = 5
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Solve for "x"
x = 16-4y
x = 16-4*5
x = 16-20
x = -4
