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KatRina [158]
3 years ago
9

Mona has invested $2840 in a savings account for 6 years. She earned $894.60 in a simple interest. What was the annual interest

rate?
Mathematics
1 answer:
forsale [732]3 years ago
8 0

Answer:

The annual interest rate was 5.25%.

Step-by-step explanation:

Simple interest can be calculated using the following formula:  I = PRT, where I=simple interest, P=principal amount, R=percentage rate and T=time.  In this problem, Mona started with a principal amount of $2840, or P=2840 and invested for 6 years, or T=6, to gain simple interest in the amount of $894.60, or I=894.60.  When we put in the values for our variables in the equation, we get:  894.60 = (2840)(6)R.  Multiplying 2840 x 6 = 17040 and gives us:  894.60 = 17040R.  Using inverse operations to isolate the variable, we divide both sides by 17040 to get R=0.0525.  Since the rate is a percentage, we need to multiply our answer by 100 to get 5.25%.  

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Write your answer for y.
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Answer:

The coordinates of Y' will be:  A'(4, -3)

Step-by-step explanation:

Triangle XYZ with vertices

  • X(-5, -2)
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  • Z(-1, 1)

We have to determine the answer for the image Y' of the point Y(-3, 4) with respect to the line mirror y=x.

We know that when P(x, y) is reflected in y = x, we get P'(y, x)

i.e.

The rule of y=x:

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As we are given that Y(-3, 4), so the coordinates of Y' will be:

A(-3, 4) → A'(4, -3)

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4 0
3 years ago
Express the area of a rectangle with length 7ab and width 2a as a monomial.
Lady_Fox [76]
Area of a rectangle is length * width.

7ab * 2a is the same as 7(2) * a(a) * b

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5 0
4 years ago
What is the probability of having 53 Mondays in a leap year?
Ronch [10]

Answer:

1/7

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5 0
4 years ago
What percentage is represented by the shaded area
denis-greek [22]

Answer:

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yanalaym [24]

For this case we have:

Note:<em> Milliliter is a unit of volume. It is not possible to convert distance units into volume units. </em>

We must convert the length 0.13 meters to millimeters.

By definition, 1 meter equals 1000 millimeters. That is to say:

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Thus, the marker measures 130 millimeters long

Answer:

130 millimeters


4 0
3 years ago
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