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sweet-ann [11.9K]
3 years ago
14

Edward deposited $9,500 into a savings account 3 years ago. The simple interest rate is 3%. How

Mathematics
1 answer:
elena55 [62]3 years ago
6 0
Multiply the initial deposit with the number of years with the interest rate.
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2x-4y=8 and 7x-3y=61 solve by substitution
Ratling [72]

Answer:

(10, 3)

Step-by-step explanation:

Solve by Substitution

2x − 4y = 8 and 7x − 3y = 61

Solve for x in the first equation.

x = 4 + 2y 7x − 3y = 61

Replace all occurrences of x with 4 + 2y in each e quation.

Replace all occurrences of x in 7x − 3y = 61 with 4 + 2y. 7 (4 + 2y) − 3y = 61

x = 4 + 2y

Simplify 7 (4 + 2y) − 3y.

28 + 11y = 61

x = 4 + 2y

Solve for y in the first equation.

Move all terms not containing y to the right side of the equation.

11y = 33

x = 4 + 2y

 Divide each term by 11 and simplify.

y = 3

x = 4 + 2y

 

Replace all occurrences of y with 3 in each equation.

Replace all occurrences of y in x = 4 + 2y with 3. x = 4 + 2 (3)

y = 3

Simplify 4 + 2 (3).

x = 10

y = 3

The solution to the system is the complete set of ordered pairs that are valid solutions.

(10, 3)

The result can be shown in multiple forms.

Point Form:

(10, 3)

Equation Form:

x = 10, y = 3

4 0
3 years ago
Read 2 more answers
Find the expected value of the winnings
Bas_tet [7]

Answer:

2.65

Step-by-step explanation:

Multiply each payout by its probability, then add those products.

See the attached image.

The first column has the payouts.  The second column has the probabilities. The third column has the results of multiplying a payout by its probability.

The sum of the entries in the third column is 2.65

6 0
3 years ago
Read 2 more answers
Their are 35 green marbles out of 60 marbles in the bag what is the ratio of the green marbles to total marbles?
kipiarov [429]

Answer:

7:12

Step-by-step explanation:

I hope it helps. Hope its correct

6 0
4 years ago
Find X- Y if X= 1/4 and Y= -X <br><br> A) 1/3<br> B) 1/2<br> C) -1/3<br> D)-1/2
77julia77 [94]

Answer:

Step-by-step explanation:

x = 1/4

y = -x = -1/4

x-y=\frac{1}{4}-(-\frac{1}{4})\\\\=\frac{1}{4}+\frac{1}{4}\\\\=\frac{1+1}{4}\\\\=\frac{2}{4}\\\\=\frac{1}{2}

6 0
3 years ago
When the figure below is rotated 90 degrees counterclockwise about the origin what would be the new coordinates of point c?
Sedbober [7]
Rotating a figure 90° counterclockwise about the origin results in an ordered pair (x, y) mapping to its image (-y, x).  Thus point C, which is at (3, 5), will map to (-5, 3).
6 0
4 years ago
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