Answer:
Both of them correct.
$21.945
They have enough money to purchase the book
Step-by-step explanation:
Oscar takes 30% of the normal price and subtracts it from the normal price. Out of 100% price he takes 30% so the result is: 100-30%= 70% of the normal price. Oscar's first step has the same result as Kim.
Oscar takes 10% of the discounted price (70%) and adds it back. The price will become 70% + 10%*70%= 77% of original price. Kim multiplies the discounted price with 110%, so the price will be: 70% * 110%= 77%. Both also give the same result.
The final price is 77% of the original, it will be: $28.50* 77%= $21.945
Both of them can buy the book
Answer:
Step-by-step explanation:
t is the number of years since 2003.
f(t) = $18,500×0.88^t
t = 2 in 2005
f(2) = $18,500×0.88²≅ $14,300
Answer:
19.4 miles per gallon
Step-by-step explanation:
In this question, we are asked to calculate the distance traveled per gallon of fuel filled into a tank. Hence, this looks like a rate question.
Firstly, we need to know the distance covered during the duration in which the fuel was in the engine. To do this, we subtract the final odometer reading from the initial odometer reading. This is mathematically equal to: 24,923.4 - 24,583.9 = 339.5 miles.
This means she travelled a total distance of 339.5 miles on the 17.5 gallon fuel.
Hence, the miles per gallon gotten by the van is numerically equal to 339.5/17.5 = 19.4 miles/ gallon
