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MrRa [10]
3 years ago
13

Betty has $1,000 in her savings account. The interest rate is 2.5%. How much interest will Betty earn when her money has been in

bank for 3 years?
Mathematics
1 answer:
V125BC [204]3 years ago
3 0

Answer:

$1,075

Step-by-step explanation:

Use the formula I=PRT where I= interest, P=principle or starting amount, R=interest rate, T=time

1000*0.025*3=75

Add 75 to 1,000, 1,000+75=1,075

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11. What is the third term of the recursive sequence below? a1=-6 an=1/2an-1-n<br> Hurryy plzzz
AlexFokin [52]

Answer:

a

Step-by-step explanation:

a_{1} = -6\\\\a_{n}=\frac{1}{2}a_{n-1} - n\\\\a_{2}=\frac{1}{2}a_{1}-2\\\\  = \frac{1}{2}*(-6)-2\\\\ = -3 - 2\\\\= -5\\\\a_{3}=\frac{1}{2}a_{2}-3\\\\= \frac{1}{2}*(-5)-3\\\\=\frac{-5}{2}-3\\\\= \frac{-5}{2}-\frac{3*2}{1*2}\\\\=\frac{-5}{2}-\frac{6}{2}\\\\=\frac{-11}{2}

5 0
3 years ago
Determine the center and radius of the following circle equation:<br> x^2+y^2+12x-10y+12=0
harina [27]

Answer:

Center: ( -6,5) Radius: 7

Step-by-step explanation:

I hope this helps!

6 0
3 years ago
Read 2 more answers
Please help!
blondinia [14]

The equation of a line that is parallel to 3x=4y and has the same y-intercept as 2x-3y=6 is:

y = (3/4)*x - 2

<h3></h3><h3>How to get the equation of the line?</h3>

A general linear equation is written as:

y = a*x + b

Where b is the y-intercept and a is the slope.

Such that two lines are parallel if the lines have the same slope but different y-intercepts.

So, if we want to have a line parallel to:

3x = 4y

y = (3/4)*x

Then the slope must be 3/4.

And the line must have the same y-intercept than:

2x - 3y = 6.

We can rewrite that to get:

-3y = 6 - 2x

y = (6/-3) + (2/3)*x

y = (2/3)*x - 2

So this linear equation has a y-intercept equal to -2, then our linear equation is:

y = (3/4)*x - 2

If you want to learn more about linear equations:

brainly.com/question/14323743

#SPJ1

3 0
2 years ago
Someone plz help I need this answer quick !
Ivahew [28]
The answer is 5 months, with the cost of $85. You can find this answer by first writing the charges as 12x + 25 and 10x + 35. Then, you set them equal to each other and solve to find x, which is the number of months.
12x + 25 = 10x + 35
- 10x
2x + 25 = 35
- 25
2x = 10
÷ 2
x = 5

Now that we know what x is, we can substitute it in and get 10(5) + 35 = 50 + 35 = 85.
I hope this helps!
8 0
4 years ago
Which equation does NOT represent direct variation? A. Y=x/21 B. y/x=5/8 C. y-3= 3x D. y-5x=0
Serjik [45]
The gradient of the function is constant s the independent variable (x) varies The graph passes through the origin. That is to say when x = 0, y = 0. Clearly A and D pass through the origin, and the gradient is constant because they are linear functions, so they are direct variations. The graph of 1/x does not have a constant gradient, so any stretch of this graph (to y = k/x for some constant k) will similarly not be direct variation. Indeed there is a special name for this function, inverse proportion/variation. It appears both B and C are inverse proportion, however if I interpret B as y = (2/5)x instead, it is actually linear. I believe the answer is C. Hope I helped!
6 0
3 years ago
Read 2 more answers
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