Your fuel expense for last year was $800.00. This year it was $960.00. What was your percent of increase? A. 20%
B. 18%
C. 15%
D. 23%

Answers

Answer 1

Answer: Your fuel expense last year is said to be 800 dollars. That's for your annual total. Now, this year, It increased to 960 dollars. Maybe the fuel gets price increased. Anyways, we need to solve for the percentage increased of your fuel price from last year to this year. => 960 dollars - 800 dollars = 160 dollars=> 160 dollars / 800 dollars = 0.2 => 0.2 * 100% = 20% is the increased of your fuel expense.

Answer 2

Answer: If you would like to know what was the percent of increase, you can calculate this using the following steps:

x% of $800.00 is $960.00
x% * 800 = 960
x/100 * 800 = 960
x * 8 = 960 /8
x = 960 / 8
x = 120%

120% - 100% = 20%

The correct result would be A. 20%.

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Step-by-step explanation:

During her first year of college, Sara put $2000 in the bank to save for a trip to Italy after graduation. The money earned 3% simple annual interest. After 4 years, how much money did she have in the bank for her trip?

Answers

Answer:

2,240

Step-by-step explanation:

Sara will have US$ 2,251.02 in the bank after 4 years for her trip to Italy.

Step-by-step explanation:

1. Let's review the data given to us for solving the question:

Investment of Sara during her 1st year of college = US$ 2,000

Duration of the investment = 4 years

Annual interest rate = 3%

2. Let's find the future value of this investment after 4 years, using the following formula:

FV = PV * (1 + r) ⁿ

PV = Investment of Sara during her 1st year of college = US$ 2,000

number of periods (n) = 4

rate (r) = 3% = 0.03

Replacing with the real values, we have:

FV = 2,000 * (1 + 0.03) ⁴

FV = 2,000 * (1.03) ⁴

FV = 2,000 * 1.12550881

FV = 2,251.02

Sara will have US$ 2,251.02 in the bank after 4 years for her trip to Italy. Later you round the answer and that gives you 2,240

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Which is equivalent to (9y2 – 4x)(9y2 + 4x), and what type of special product is it?

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