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ss7ja [257]
3 years ago
11

Rachel has $9 in a savings account. The interest rate is 5%, compounded annually.

Mathematics
1 answer:
pogonyaev3 years ago
7 0
1 % of 9 is 0.09, multiply 0.09 by 5= 0.45 (to find 5%)
Then multiply 0.45 by 36 (3years)= 16.20
Then add 16.20 to $9= $25.20
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Roxana makes bracelets and necklaces and sells them at the farmers’ market. She sells the bracelets for $12 each and the necklac
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She could out 20 necklaces and 20 bracelets on display and she would make $600.

Step-by-step explanation:

$18 necklaces x 20= $360

$12 bracelets x 20 = $240

totalling $600

7 0
3 years ago
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ID

Step-by-step explanation:

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3 years ago
What is the sum of the infinite geometric series? Sigma-Summation Underscript n = 1 Overscript 3 EndScripts (1.3) (.8) Superscri
Nimfa-mama [501]

Answer:

<h2>6.5</h2>

Step-by-step explanation:

Given the sum of the series represented as \sum\left {3} \atop {1}} \right (1.3)(0.8)^{n-1}. <u>To get the sum to infinity of the geometric series, we need to get its first term and its common ratio</u>. comparing to the general term of the sum of series of a GP \sum\left {n} \atop {1}} \right (a)(r)^{n-1}

a = first term of the series

r = common ratio

On comparing to the given series, a = 1.3 and r = 0.8

Sum to infinity of a Geometric series is expressed as:

S_ \infty =\frac{a}{1-r}\\ S_ \infty =\frac{1.3}{1-0.8}\\S_ \infty =\frac{1.3}{0.2}\\S_ \infty = 6.5

6 0
3 years ago
HELP ME WHICH ANSWER
SIZIF [17.4K]

Answer:

D

Step-by-step explanation:

30 : 13  = 30/13

8 0
3 years ago
Read 2 more answers
Work out the value of: xy + 5 when x = 2 and y = -3
Natalka [10]
Xy + 5

x = 2
y = -3

(2)(-3) + 5

-6 + 5 = -1

-1 is your answer

hope this helps
3 0
4 years ago
Read 2 more answers
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