If 0.01z = 9.99, then z =
Answer(s): C
Because the answer choices are so far apart, you can ballpark this problem. Multiply both sides by 100 to eliminate the decimal points:z = 999.
If 0.06x = 52.2, then x =
Answer(s): D
Because the answer choices are so far apart, you can ballpark this problem. Multiply both sides by 100 to eliminate the decimal points:6x = 5220, divide both sides by 6. x = 870.
A taxi company costs $2.75 for the first quarter-mile and 12.5 cents for each additional quarter mile. What is the maximum distance you can travel with $6.50?
Since you spend $2.75 for the first quarter mile, you have $3.75 (6.5 – 2.75) left to spend on ¼ mile intervals.$3.75 divided by $.125 equals 30 quarter miles. The 30 miles, plus the initial quarter mile, makes a total of 31quarter miles. 31 quarter-miles equal 7.75 miles.
A photo-mat shop charges $0.55 for the first photo inside a film, and 40% cents less for each additional photo. How many photos can we develop with $52.58 if each film contains 36 photos?
Answer(s): A
Each film costs: 0.55 + 35 x (60% of 0.55 $ is 0.33) = 0.55 + 11.55 = 12.1$ per film. 52.58$ = 4 x 12.1$ + 4.18$.4.18$ - 0.55$ = 3.63$. 3.63$/0.33$ = 11 All together gives 4 films + 12 photos.
In a fuel station the service costs $1.75 per car, every liter of fuel costs 0.65$. Assuming that a company owns 12 cars and that every fuel tank contains 55 liters and they are all empty, how much money total will it cost to fuel all cars?
The cost of fuel per car is: 1.75 + 0.65 x 55 = 37.5 $. There are 12 cars so the sum is 37.5 x 12 = 450 $.
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