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skad [1K]
2 years ago
5

Harry took a loan from the bank.D represents Harry's remaining debit (In dollars) after t months.D = -200t + 9000

Mathematics
1 answer:
lbvjy [14]2 years ago
5 0

D = His remaining debt in dollars

t = number of months

\begin{gathered} D=-200t+9000 \\ D=9000-200t \end{gathered}

The size of the loan will be $9000 . From the equation you can notice the product of 200 and t is always subtracted at t months from the amount he borrowed($9000)

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Solve the below system of equations using the best method. Please describe the method used [substitution, graphing, elimination,
Veseljchak [2.6K]
1). Since you have -2y and 4y, elimination is easy to do for solving for x..
Keep the first equation and multiply the second equation by 2. Then add.

5x - 2y = -1
8x + 4y = 56

10x - 4y = -2
8x + 4y = 56
-----------------
18x       = 54

x = 3

Now we can use substitution to solve for y.
Substitute 3 for x in the first original equation and solve for y.

5x - 2y = -1

5(3) - 2y = -1

15 - 2y = -1

-2y = -16

y = 8

(3, 8)


2.)

3x - y = =16
-4x - y = 21

Multiply both sides of the first equation by -1 to change all signs. Then when you add the equations, you eliminate y and solve for x.

-3x + y = 16
-4x - y = 21
-----------------
-7x       = 37

x = -37/7

Now multiply the first original equation by 4 and the second original by 3 to eliminate x and solve for y.

 12x - 4y = -64
-12x - 3y =  63
---------------------
         -7y   = -1

y = 1/7

Solution: (-37/7, 1/7)
4 0
3 years ago
A flag is created by sewing together
Rasek [7]

Answer:

yes, a flag is created by sewing it together

3 0
3 years ago
Help PLEASE!!! I NEED HELP!!!
lubasha [3.4K]
The correct answer is D. -7w and 3w.
Like terms are numbers that both either have the same variable or both have no variable.
A variable is an unknown number represented as a letter.
Since -7w and 3w both have the variable w, they are like terms.
Hope this helps!
4 0
3 years ago
Read 2 more answers
A store is having a sale where winter clothes are 60% of the original price. A sweater is on sale for $30. What was the original
Leno4ka [110]

Answer: The original price was $50.


4 0
4 years ago
The table shows the number of free throws a player makes in a basketball game and the number of points the player scores in the
vazorg [7]

Answer:

The regression equation of the data will be:

s=6.2f+1.7

Step-by-step explanation:

A simple linear regression equation is used to estimate the value of the dependent variable based upon the independent variable.

The general form of a simple linear regression equation is:

y=a+bx

Here,

<em>y</em> = dependent variable

<em>x</em> = independent variable

<em>a</em> = intercept

<em>b</em> = slope

The data is provided for the number of free throws a player makes in a basketball game and the number of points the player scores in the game.

The free throw in a basketball game implies that for every throw shot made the player receives point.

This implies that the points scored are based upon the number of free throws made by a player.

So, the dependent variable is the number of points scored and the independent variable is the number of free throws a player makes.

Then the regression equation of the data will be:

s=6.2f+1.7

4 0
4 years ago
Read 2 more answers
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