a machine uses 2.5 liters of fuel each hour it runs,its fuel tank was filled with 10 L but 1.5 L have already been used how many more hours will the machine run
The number of hours machine runs with 8.5 L fuel is 3.4 hours.
Given that, a machine uses 2.5 liters of fuel each hour it runs, its fuel tank was filled with 10 L but 1.5 L have already been used.
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Now, 10 - 1.5 = 8.5 L
So, the number of hours = 8.5/2.5
= 3.4 hours
Therefore, the number of hours machine runs with 8.5 L fuel is 3.4 hours.
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The rate of sales tax on the hardcover book is 4.25%.
Given that, a hardcover book sells for $24 at the Bookmart.
Calculating the sales tax applied to a purchase is a matter of simply multiplying the tax rate by the purchase price using the equation sales tax = purchase price × sales tax rate. Adding the sales tax to the original purchase price gives the total price paid with tax.
Ben pays a total of $25.02 for the book.
So, sale tax =25.02-24
= $1.02
Now, the sales tax rate
= 1.02/24 ×100
= 0.0425 ×100
= 4.25%
Hence, the rate of sales tax on the hardcover book is 4.25%.
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