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vichka [17]
3 years ago
8

You borrow $500 to buy a computer. The simple interest rate is 15%. You pay off the loan after 4 years. How much do you pay for

the loan?
Mathematics
1 answer:
GREYUIT [131]3 years ago
4 0
Its $800 because to find interest u can use the formula I=PRT p is principal which is 500 times r which is rate-15/100(=15%) times 4

so the interest is 500×15/100×4=300
then u add 300 to 500 because the interest adds more money to the loan
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write an equation of a line perpendicular to the givin equation using the given point givne (8,2); x = -4
MakcuM [25]

y=-x+10 is the equation of a line perpendicular to the givin equation using the given point given (8,2) and x = -4

<h3>What is Slope of Line?</h3>

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

In the perpendicular lines the product of slopes will be -1

m1m2=-1

y=x+4 is the given line, it has slope of 1, so the perpendicular line will have slope -1.

The line is passing through (8,2)

2=-1(8)+b

2=-8+b

2+8=b

10=b

Hence, y=-x+10 is the equation of a line perpendicular to the givin equation using the given point given (8,2) and x = -4

To learn more on slope of line click:

brainly.com/question/14511992

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4 0
1 year ago
5) Telephone numbers in the
rodikova [14]

Answer:

6,400,000,000 (6.4 billions)

Step-by-step explanation:

We have a total of 10 digits, and each digit was 10 possibilities of being filled, except the first digit of the area code and first digit of the telephone number, that have only 8 possibilities.

So if 8 digits have 10 possible values and 2 digit has 8 possible values, the number of possible telephone numbers is:

10^8 * 8^2 = 6,400,000,000 (6.4 billions)

3 0
3 years ago
The sum of a number x and twenty-one
Arlecino [84]
The sum of a number.....means addition

ur expression would be : x + 21
5 0
3 years ago
Alice wants to find all the prime factors of the number you get when you multiply 17 x 11 x 13 x 7. She thinks she has to use a
makvit [3.9K]
I disagree because she can use a pencil and paper or she can do mental math
7 0
3 years ago
Select all the equations that have the same solution as 2x - 5 = 15
Scilla [17]

Answer:

Step-by-step explanation:

2x - 5 = 15

Bringing like terms on one side

2x = 15 + 5

2x = 20

Option B is the correct answer

3 0
3 years ago
Read 2 more answers
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